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Health

Vaccine Effectiveness In opposition to An infection Might Wane, C.D.C. Research Discover

The Centers for Disease Control and Prevention published three studies on Wednesday that federal officials said provided evidence that booster shots of the Pfizer BioNTech and Moderna coronavirus vaccines would be needed in the coming months.

However, some experts said the new research did not support the decision to recommend a booster dose to all Americans.

Taken together, the studies show that while the vaccines are still highly effective against hospital admissions and deaths, their bulwark against infection with the virus has weakened in recent months.

The finding is consistent with early data from seven states compiled this week by the New York Times, suggesting an increase in breakthrough infections and a smaller increase in hospital admissions among vaccinated people as the Delta variant spread in July.

The decline in effectiveness against infections may be due to declining vaccine immunity, failure of precautionary measures like wearing masks, or the rise of the highly contagious Delta variant, experts said – or a combination of all three.

“We are concerned that this pattern of decline that we are seeing will continue in the coming months, which could result in decreased protection from serious illness, hospitalization and death,” said Dr. Vivek Murthy, the surgeon general, at a press conference at the White House on Wednesday.

Citing the data, federal health officials outlined a plan for Americans who received the two vaccines to receive a booster dose eight months after receiving their second dose starting September 20.

People who have received the Johnson & Johnson vaccine may also need additional doses. That vaccine wasn’t launched until March 2021, however, and a plan to deploy boosters will be drawn up after reviewing new data expected over the next few weeks, officials said.

Some scholars were skeptical of the government’s new initiative.

“These data support the administration of additional doses of the vaccine to severely immunocompromised individuals and nursing home residents, not the general public,” said Dr. Celine Gounder, Infectious Disease Specialist at Bellevue Hospital Center and former advisor to the administration for the pandemic.

Boosters would only be justified if the vaccines didn’t prevent hospital stays with Covid-19, she said.

“Feeling sick like a dog and staying in bed but not lying in hospital with severe Covid is not reason enough,” said Dr. Gounder. “We will be better protected by vaccinating the unvaccinated here and around the world.”

It’s unclear whether a third dose would help people who didn’t evoke a robust immune response to the first two doses, said Bill Hanage, an epidemiologist at Harvard TH Chan School of Public Health.

And the recommendation for boosters could also undermine confidence in the vaccines, he warned: “A third shot will increase skepticism among people who have not yet received a dose that the vaccines will help them.”

Taken together, the new studies show overall that vaccines are about 55 percent effective against all infections, 80 percent against symptomatic infections, and 90 percent or more against hospitalization, noted Ellie Murray, an epidemiologist at Boston University.

“These numbers are actually very good,” said Dr. Murray. “The only group for which this data would suggest boosters for me are the immunocompromised.”

Updated

Aug. 19, 2021, 10:57 a.m. ET

The apparent decrease in the vaccine’s effectiveness against infection could instead have been caused by increased exposure to the highly contagious Delta variant during a period of unrestrained social interaction, she added: “This seems like a real possibility to me, given many early vaccines motivated were the desire to see friends and family and return to normal. “

Dr. Murray said a booster vaccination would undoubtedly boost a person’s immunity, but the added benefit can be minimal – and just as easily achieved by wearing a mask or avoiding indoor dining and crowded bars.

The government’s focus on vaccines has undermined the importance of building other precautions into people’s lives in a convenient and sustainable way and strengthening testing capacity, said Dr. Murray and other experts.

“This is one of the reasons I think the government’s focus on vaccines is so damaging to morality,” she added. “We probably won’t get back to normal anytime soon.”

Before people can start the booster, the Food and Drug Administration must first authorize a third dose of the vaccines manufactured by Pfizer-BioNTech and Moderna, and an advisory committee from the CDC must review the evidence and make recommendations.

One of the new CDC studies analyzed the effectiveness of vaccines in residents of nearly 4,000 nursing homes from March 1 to May 9 before the advent of the Delta variant and of nearly 15,000 nursing homes from June 21 to August 1 as the new infections variant dominated in the country.

The effectiveness of the vaccines in preventing infection dropped from about 75 percent to 53 percent between those dates, the study found. The protection of the vaccines against serious illness has not been assessed.

Understand the state of vaccination and masking requirements in the United States

    • Mask rules. The Centers for Disease Control and Prevention in July recommended that all Americans, regardless of vaccination status, wear masks in public places indoors in areas with outbreaks, reversing the guidelines offered in May. See where the CDC guidelines would apply and where states have implemented their own mask guidelines. The battle over masks is controversial in some states, with some local leaders defying state bans.
    • Vaccination regulations. . . and B.Factories. Private companies are increasingly demanding corona vaccines for employees with different approaches. Such mandates are legally permissible and have been confirmed in legal challenges.
    • College and Universities. More than 400 colleges and universities require a vaccination against Covid-19. Almost all of them are in states that voted for President Biden.
    • schools. On August 11, California announced that teachers and staff at both public and private schools would have to get vaccinated or have regular tests, the first state in the nation to do so. A survey published in August found that many American parents of school-age children are against mandatory vaccines for students, but are more supportive of masking requirements for students, teachers and staff who do not have a vaccination.
    • Hospitals and medical centers. Many hospitals and large health systems require their employees to receive a Covid-19 vaccine, due to rising case numbers due to the Delta variant and persistently low vaccination rates in their communities, even within their workforce.
    • new York. On August 3, New York City Mayor Bill de Blasio announced that workers and customers will be required to provide proof of vaccination when dining indoors, gyms, performances, and other indoor situations. City hospital staff must also be vaccinated or have weekly tests. Similar rules apply to employees in New York State.
    • At the federal level. The Pentagon announced that it would make coronavirus vaccinations compulsory for the country’s 1.3 million active soldiers “by mid-September at the latest. President Biden announced that all civil federal employees would need to be vaccinated against the coronavirus or undergo regular tests, social distancing, mask requirements and travel restrictions.

Nursing homes did not have to report the number of residents vaccinated until after June 6, which “makes comparisons over time very difficult,” said Dr. Murray. “It is entirely possible that the effectiveness of the vaccine reported here has not really diminished over time.”

The decline in effectiveness could also be due to the spread of the Delta variant, said Dr. Gounder.

“It makes sense to give vaccinated nursing home residents an extra dose of vaccine, but what will have an even bigger impact on protecting these nursing home residents is vaccinating their caregivers,” she said. Many caregivers in long-term care facilities remain unvaccinated.

A second study evaluated data from New York State from May 3 to July 25, when the Delta variant grew to more than 80 percent of new cases. The effectiveness of vaccines in preventing cases in adults fell from 91.7 percent to 79.8 percent during that time, the study found. But the vaccines remained just as effective at preventing hospital stays.

In those weeks, New York recorded 9,675 breakthrough infections – about 20 percent of the state’s total cases – and 1,271 hospital admissions of vaccinated people, accounting for 15 percent of all Covid-19 hospital admissions.

Although fully immunized people of all ages contracted the virus, the vaccine’s effectiveness fell the most, from 90.6 percent to 74.6 percent in people ages 18 to 49 – who are often the least likely to take precautions and are most likely to socialize .

Data from Israel suggests immunity to infection has declined in vaccinated adults aged 65 and over. But in the New York data, the effectiveness of the vaccines in this group hardly diminished.

Adults aged 65 and over were hospitalized more often than other age groups, regardless of their vaccination status. But the vaccines did not show a decrease in effectiveness against hospital admissions in any of the age groups.

The CDC’s third study found the vaccines showed 90 percent effectiveness against hospital stays in the country, “which is excellent,” noted Dr. Gounder.

The vaccines provided less protection against hospitalization in immunocompromised people. “But not all immunocompromised people will respond to an extra dose of vaccine,” noted Dr. Gounder.

To protect these vulnerable people, everyone around them should be vaccinated and continue to wear masks, she added.

The vaccines appear to be less effective than the studies that led to their approval, as those studies were done before the delta variant emerged.

Statistically, as more unvaccinated people become infected, recover, and gain natural immunity, the vaccines may lose relative effectiveness. And scientists always expected that the proportion of those who were vaccinated among those infected would increase if more people were vaccinated.

If preventing infection is the goal, it would be smarter to develop a booster shot of a nasal spray vaccine that will create better immunity in the nose and throat where the virus enters the body, said Dr. Gounder.

Categories
Health

Can the Vaccinated Develop Lengthy Covid After a Breakthrough An infection?

While some breakthrough cases in people fully vaccinated against Covid-19 are inevitable, they are unlikely to result in hospitalization or death. But an important question about breakthrough infection remains unanswered: Can the vaccinated develop a so-called long covid?

Long Covid refers to a range of symptoms – such as severe fatigue, brain fog, headache, muscle aches, and trouble sleeping – that can last for weeks or months after the active infection has ended. The syndrome is little known, but studies suggest that between 10 and 30 percent of adults who contract the virus can have Covid for a long time, including those who had mild illness or no symptoms at all.

But the vast majority of the long-term data collected by Covid concerns the unvaccinated population. The risk of developing long-term Covid has not been studied in fully vaccinated people who become infected after vaccination.

While preliminary research suggests that it is indeed possible that a breakthrough case could lead to symptoms that could last weeks to months, there are still more questions than answers. What percentage of breakthrough cases result in persistent symptoms? How many of these people are recovering? Are the persistent symptoms after a breakthrough infection as severe as with the unvaccinated?

“I just don’t think there’s enough data,” said Dr. Zijian Chen, medical director of the Center for Post-Covid Care at Mount Sinai Health System in New York. “It’s too early to say that. The number of people who get sick after vaccination is not that high right now, and there is no good tracking mechanism for these patients. “

A study of Israeli health workers recently published in the New England Journal of Medicine offers insight into the risk of long-term Covid infection after a breakthrough infection. Of 1,497 fully vaccinated health care workers, 39 – approximately 2.6 percent – developed breakthrough infections. (All workers were thought to be infected after contact with an unvaccinated person, and the study was conducted before the delta variant became dominant.)

While most breakthrough cases were mild or asymptomatic, seven out of 36 workers observed after six weeks (19 percent) still had persistent symptoms. These long Covid symptoms included a mixture of persistent loss of smell, persistent cough, fatigue, weakness, shortness of breath, or muscle pain.

However, the study’s authors caution against drawing too many conclusions from the research. The sample size – only seven patients – is small. And the research is designed to look at antibody levels in those infected, said Dr. Gili Regev-Yochay, Director of the Department of Epidemiology of Infectious Diseases at Sheba Medical Center. It was not designed to study the risk of long-term Covid illness after a breakthrough infection.

“That was not the scope of this paper,” said Dr. Regev-Yochay. “I don’t think we have an answer to that.”

Still, the fact that one in five healthcare workers who had a breakthrough infection still had persistent symptoms after six weeks seems to be the first clue from a peer-reviewed study that long Covid is possible after a breakthrough infection.

Updated

Aug 16, 2021, 1:10 p.m. ET

“People said to me, ‘You are fully vaccinated. Why are you so careful? ‘”Said Dr. Robert M. Wachter, professor and chair of the medical school at the University of California at San Francisco. “I’m still in the camp that I don’t want to get Covid. I don’t want to get a breakthrough infection. “

Dr. Wachter said that despite the many limitations of the Israeli study, the data provides more evidence that those vaccinated should continue to take reasonable precautions to avoid the virus.

“I’ll take it at face value that one in five people continued to feel bad six weeks after a breakthrough,” said Dr. Guardian. “That’s enough to wear two masks when you go shopping in the supermarket, which isn’t that stressful anyway.”

Understand the state of vaccination and masking requirements in the United States

    • Mask rules. The Centers for Disease Control and Prevention in July recommended that all Americans, regardless of vaccination status, wear masks in public places indoors in areas with outbreaks, reversing the guidelines offered in May. See where the CDC guidelines would apply and where states have implemented their own mask guidelines. The battle over masks is controversial in some states, with some local leaders defying state bans.
    • Vaccination regulations. . . and B.Factories. Private companies are increasingly demanding coronavirus vaccines for employees with different approaches. Such mandates are legally permissible and have been confirmed in legal challenges.
    • College and Universities. More than 400 colleges and universities require a vaccination against Covid-19. Almost all of them are in states that voted for President Biden.
    • schools. On August 11, California announced that teachers and staff at both public and private schools would have to get vaccinated or have regular tests, the first state in the nation to do so. A survey published in August found that many American parents of school-age children are against mandatory vaccines for students but are more likely to support masking requirements for students, teachers and staff who are not vaccinated.
    • Hospitals and medical centers. Many hospitals and large health systems require their employees to have a Covid-19 vaccine, due to rising case numbers due to the Delta variant and persistently low vaccination rates in their communities, even within their workforce.
    • new York. On August 3, New York City Mayor Bill de Blasio announced that workers and customers would be required to provide proof of vaccination when dining indoors, gyms, performances, and other indoor situations. City hospital staff must also be vaccinated or have weekly tests. Similar rules apply to employees in New York State.
    • At the federal level. The Pentagon announced that it would make coronavirus vaccinations compulsory for the country’s 1.3 million active soldiers “by mid-September at the latest. President Biden announced that all civil federal employees would need to be vaccinated against the coronavirus or undergo regular tests, social distancing, mask requirements and travel restrictions.

Making breakthrough infection research difficult is the fact that the U.S. Centers for Disease Control and Prevention only track post-vaccination infections that result in hospitalization or death. While the CDC continues to study breakthrough infections in several large cohorts, the lack of data on all breakthrough cases remains a source of frustration among scientists and patient organizations.

“It is very frustrating not to have data at this point in the pandemic to know what will happen to breakthrough cases,” said Akiko Iwasaki, an immunologist at Yale School of Medicine who conducts studies on long-term Covid. “When a mild breakthrough infection turns into a long Covid, we don’t have that number under control.”

Diana Berrent, founder of Survivor Corps, a Facebook group for people affected by Covid-19 with approximately 171,000 members, conducted an informal survey and found 24 people who said they had persistent symptoms after a breakthrough infection. It is not a scientific sample and the cases have not been validated, but the survey shows that more data is needed on breakthrough cases, Ms Berrent said.

“You can’t extrapolate it to the general population, but it sends a very strong signal that the CDC must mandate coverage of every breakthrough case,” Ms. Berrent said. “We can’t know what we’re not counting.”

However, some experts predict that the surge in new cases caused by the spread of the Delta variant will unfortunately lead to more groundbreaking cases in the coming months. Dr. Chen of Mount Sinai said it would take several months to enroll patients with long covid due to a breakthrough infection.

“We are waiting for these patients to show up at our door,” said Dr. Chen.

Despite the lack of data, one thing is clear: vaccination reduces the risk of getting infected and developing Covid, Athena Akrami, a neuroscientist at University College London, said the data from nearly 4,000 long-term Covid patients developed after long Covid collected and released after a battle with Covid-19 in March 2020.

“It’s simple math,” said Dr. Akrami. “If you reduce infections, the likelihood of long-term Covid illnesses automatically decreases.”

Categories
Health

Can the Vaccinated Develop Lengthy Covid After a Breakthrough An infection?

While some breakthrough cases in people fully vaccinated against Covid-19 are inevitable, they are unlikely to result in hospitalization or death. But an important question about breakthrough infection remains unanswered: Can the vaccinated develop a so-called long covid?

Long Covid refers to a range of symptoms – such as severe fatigue, brain fog, headache, muscle aches, and trouble sleeping – that can last for weeks or months after the active infection has ended. The syndrome is little known, but studies suggest that between 10 and 30 percent of adults who contract the virus can have Covid for a long time, including those who had mild illness or no symptoms at all.

But the vast majority of the long-term data collected by Covid concerns the unvaccinated population. The risk of developing long-term Covid has not been studied in fully vaccinated people who become infected after vaccination.

While preliminary research suggests that it is indeed possible that a breakthrough case could lead to symptoms that could last weeks to months, there are still more questions than answers. What percentage of breakthrough cases result in persistent symptoms? How many of these people are recovering? Are the persistent symptoms after a breakthrough infection as severe as with the unvaccinated?

“I just don’t think there’s enough data,” said Dr. Zijian Chen, medical director of the Center for Post-Covid Care at Mount Sinai Health System in New York. “It’s too early to say that. The number of people who get sick after vaccination is not that high right now, and there is no good tracking mechanism for these patients. “

A study of Israeli health workers recently published in the New England Journal of Medicine offers insight into the risk of long-term Covid infection after a breakthrough infection. Of 1,497 fully vaccinated health care workers, 39 – approximately 2.6 percent – developed breakthrough infections. (All workers were thought to be infected after contact with an unvaccinated person, and the study was conducted before the delta variant became dominant.)

While most breakthrough cases were mild or asymptomatic, seven out of 36 workers observed after six weeks (19 percent) still had persistent symptoms. These long Covid symptoms included a mixture of persistent loss of smell, persistent cough, fatigue, weakness, shortness of breath, or muscle pain.

However, the study’s authors caution against drawing too many conclusions from the research. The sample size – only seven patients – is small. And the research is designed to look at antibody levels in those infected, said Dr. Gili Regev-Yochay, Director of the Department of Epidemiology of Infectious Diseases at Sheba Medical Center. It was not designed to study the risk of long-term Covid illness after a breakthrough infection.

“That was not the scope of this paper,” said Dr. Regev-Yochay. “I don’t think we have an answer to that.”

Still, the fact that one in five healthcare workers who had a breakthrough infection still had persistent symptoms after six weeks seems to be the first clue from a peer-reviewed study that long Covid is possible after a breakthrough infection.

Updated

Aug 16, 2021, 5:01 p.m. ET

“People said to me, ‘You are fully vaccinated. Why are you so careful? ‘”Said Dr. Robert M. Wachter, Professor and Chair of the Medical School, University California San Francisco. “I’m still in the camp that I don’t want to get Covid. I don’t want to get a breakthrough infection. “

Dr. Wachter said that despite the many limitations of the Israeli study, the data provides more evidence that those vaccinated should continue to take reasonable precautions to avoid the virus.

“I’ll take it at face value that one in five people continued to feel bad six weeks after a breakthrough,” said Dr. Guardian. “That’s enough to wear two masks when you go shopping in the supermarket, which isn’t that stressful anyway.”

Understand the state of vaccination and masking requirements in the United States

    • Mask rules. The Centers for Disease Control and Prevention in July recommended that all Americans, regardless of vaccination status, wear masks in public places indoors in areas with outbreaks, reversing the guidelines offered in May. See where the CDC guidelines would apply and where states have implemented their own mask guidelines. The battle over masks is controversial in some states, with some local leaders defying state bans.
    • Vaccination regulations. . . and B.Factories. Private companies are increasingly demanding coronavirus vaccines for employees with different approaches. Such mandates are legally permissible and have been confirmed in legal challenges.
    • College and Universities. More than 400 colleges and universities require a vaccination against Covid-19. Almost all of them are in states that voted for President Biden.
    • schools. On August 11, California announced that teachers and staff at both public and private schools would have to get vaccinated or have regular tests, the first state in the nation to do so. A survey published in August found that many American parents of school-age children are against mandatory vaccines for students but are more likely to support masking requirements for students, teachers and staff who are not vaccinated.
    • Hospitals and medical centers. Many hospitals and large health systems require their employees to have a Covid-19 vaccine, due to rising case numbers due to the Delta variant and persistently low vaccination rates in their communities, even within their workforce.
    • new York. On August 3, New York City Mayor Bill de Blasio announced that workers and customers would be required to provide proof of vaccination when dining indoors, gyms, performances, and other indoor situations. City hospital staff must also be vaccinated or have weekly tests. Similar rules apply to employees in New York State.
    • At the federal level. The Pentagon announced that it would make coronavirus vaccinations compulsory for the country’s 1.3 million active soldiers “by mid-September at the latest. President Biden announced that all civil federal employees would need to be vaccinated against the coronavirus or undergo regular tests, social distancing, mask requirements and travel restrictions.

Making breakthrough infection research difficult is the fact that the U.S. Centers for Disease Control and Prevention only track post-vaccination infections that result in hospitalization or death. While the CDC continues to study breakthrough infections in several large cohorts, the lack of data on all breakthrough cases remains a source of frustration among scientists and patient organizations.

“It is very frustrating not to have data at this point in the pandemic to know what will happen to breakthrough cases,” said Akiko Iwasaki, an immunologist at Yale School of Medicine who conducts studies on long-term Covid. “When a mild breakthrough infection turns into a long Covid, we don’t have that number under control.”

Diana Berrent, founder of Survivor Corps, a Facebook group for people affected by Covid-19 with approximately 171,000 members, conducted an informal survey and found 24 people who said they had persistent symptoms after a breakthrough infection. It is not a scientific sample and the cases have not been validated, but the survey shows that more data is needed on breakthrough cases, Ms Berrent said.

“You can’t extrapolate it to the general population, but it sends a very strong signal that the CDC must mandate coverage of every breakthrough case,” Ms. Berrent said. “We can’t know what we’re not counting.”

However, some experts predict that the surge in new cases caused by the spread of the Delta variant will unfortunately lead to more groundbreaking cases in the coming months. Dr. Chen of Mount Sinai said it would take several months to enroll patients with long covid due to a breakthrough infection.

“We are waiting for these patients to show up at our door,” said Dr. Chen.

Despite the lack of data, one thing is clear: vaccination reduces the risk of getting infected and developing Covid, Athena Akrami, a neuroscientist at University College London, said the data from nearly 4,000 long-term Covid patients developed after long Covid collected and released itself after a March 2020 battle with Covid-19

“It’s simple math,” said Dr. Akrami. “If you reduce infections, the likelihood of long-term Covid illnesses automatically decreases.”

Categories
Politics

Lindsey Graham reveals Covid an infection, lauds vaccine

Senate Justice Committee Chairman Senator Lindsey Graham (R-SC) attends the Senate Justice Committee business meeting on Supreme Court Justice candidate Amy Coney Barrett at the Hart Senate Office Building in Washington on October 15, 2020 , DC, part.

Tom Williams | Swimming pool | Reuters

GOP Senator Lindsey Graham on Monday praised the Covid vaccine after testing positive for the disease, saying that his “symptoms would be much worse without him”.

Graham said in a tweet that the family doctor informed him of his positive test even though he was fully vaccinated. He said he had flu-like symptoms on Saturday night and will be quarantined for ten days.

While the Senate has not officially issued a mask mandate, Graham was reportedly seen wearing a mask on Monday, according to a Politico reporter.

Graham’s announcement came as the United States is grappling with a spike in the Delta variant of Covid and the Biden government is urging more people to get vaccinated.

This story evolves. Please check again for updates.

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Health

Israel, UAE, Bahrain vaccination and an infection traits

Two women in face masks walk along a shopping area on April 19, 2021 in Dubai, United Arab Emirates.

Francois Nel | Getty Images News | Getty Images

Vaccination campaigns in several Middle East nations raced ahead of the rest of the world at the beginning of 2021.

Israel, the United Arab Emirates and Bahrain topped the list when it came to doses administered per 100 people at the start of the year.

Six months later, all three are still among the top 10 most vaccinated countries — but charts show their Covid infection trends have varied greatly.

As of June 29, 57.8% of Bahrain’s population were fully vaccinated and 59.7% of Israel’s residents received both doses of the Covid vaccine, according to Our World in Data. The UAE’s data on fully vaccinated individuals was last updated on April 20, when the figure stood at 38.8%.

Israel

Israel’s new daily cases plummeted as its vaccination program ploughed on, and data showed that infections remained largely in the low double-digits for more than a month since the end of April. That was so until a resurgence emerged in late June.

Caseloads are a fraction of previous peaks, but have risen rapidly in recent days.

The highly contagious delta variant is responsible for about half the new cases, according to Nadav Davidovitch, chair of the Israeli Association of Public Health Physicians.

Still, simulations predict that even with “widespread transmission,” there will only be several hundred severe cases, he told CNBC via video call. “Not like it used to be in the third wave,” he added, referring to the spike that began late last year.

UAE

The United Arab Emirates ranks number one in terms of total doses administered per 100 people, according to Our World in Data. But new infections in the country have stubbornly hovered around 2,000 per day.

Cases have fallen from the record highs reported in January, and temporarily dipped to the mid-1,000 level in May, but have otherwise mostly stayed around the same region.

Still, the cases now remain higher than the average daily cases of about 1,200 reported in the fourth quarter of 2020.

The UAE’s National Emergency Crisis and Disaster Management Authority in May announced that it would be offering a third dose of China’s Sinopharm vaccine. It came amid questions over the efficacy of the vaccine as there were reports of infections in individuals who had received two shots.

The country later said those inoculated with Sinopharm’s vaccine can receive the Pfizer-BioNTech shot as a booster, Reuters reported.

Bahrain

Infections in Bahrain hit record highs in late May even though vaccinations were well underway in the country.

According to Our World in Data, the kingdom reported 3,273 new cases on May 29.

At that point, more than 911,000 people in Bahrain had already received at least one dose of a Covid vaccine. It has a population of around 1.76 million people.

New daily cases have since fallen to the hundreds.

Bahrain is also offering third doses of Sinopharm’s vaccine. Booster shots of the Pfizer-BioNTech vaccine are available to more vulnerable groups such as those above the age of 50, three months after they receive a second dose of Sinopharm.

Deaths attributed to Covid

Infections are not the only indicator of a country’s coronavirus situation, and vaccinations are not the only factor at play.

Besides inoculation, a country’s demographics and Covid restrictions also play a part in the severity of illness and how quickly the virus spreads.

Deaths in Israel and the UAE have fallen and stayed low, while daily new Covid-related deaths per million in Bahrain went as high as 17 in June.

Are Covid spikes a concern?

The outbreaks in the Middle East countries are not worrying, said Paul Tambyah, president of the Asia Pacific Society of Clinical Microbiology and Infection.

“I do not think that we should be too concerned,” he told CNBC in an email. “The majority, or at least a significant proportion of cases have reportedly been in those who have not been vaccinated.”

“The main concern is that it does not look like we can get away without vaccinating a very significant proportion of the population,” he said.

I think that as long as the virus is circulating globally and borders remain open, there will be occasional outbreaks of the virus even in highly vaccinated populations.

Paul Tambyah

Asia Pacific Society of Clinical Microbiology and Infection

Virus clusters expected

High vaccination rates will not rule out clusters of cases in future, medical experts said.

“I think that as long as the virus is circulating globally and borders remain open, there will be occasional outbreaks of the virus even in highly vaccinated populations,” said Tambyah.

Davidovitch said “localized outbreaks” among children who are not vaccinated will probably continue.

He said it’s “hard to tell” if a reliance on Chinese vaccines — as seen in the UAE and Bahrain — may be linked to dramatic spikes in Covid cases.

Tambyah noted that Israel, which has used mainly Pfizer vaccines, is seeing a resurgence in cases as well.

He said there are no scientific publications comparing traditional vaccines developed by China against vaccines that rely on messenger RNA technology, which instructs the body to produce a harmless piece of the virus that helps trigger an immune response.

“I think that, unfortunately, higher vaccination rates are required,” Tambyah said.

Categories
Business

India Covid disaster: Mucormycosis fungal an infection

Medical staff in PSA caring for a person at the Covid-19 Temporary Care Center attached to LNJP Hospital at Shehnai Banquet Hall on April 23, 2021 in New Delhi, India.

Raj K Raj | Hindustan Times | Getty Images

As India grapples with a deadly second wave of coronavirus, authorities have warned of a rare fungal infection that can be maimed or even fatal if not cared for.

Multiple media reports say doctors in the country are reporting cases of mucormycosis, informally known as “black fungus,” in the recovery or recovery of Covid-19 patients in states like Maharashtra and Gujarat, as well as Delhi.

What is it?

Mucormycosis is a “serious but rare fungal infection caused by a group of molds called mucormycetes,” according to the US Centers for Disease Control and Prevention. It most commonly affects the sinuses or lungs after inhaling fungal spores from the air, but it can also appear after an injury to the skin or, in some cases, affect the brain, according to the CDC.

The infection is more common in people who have underlying health problems or are taking medications that affect their body’s ability to fight germs. Researchers studying previous murcormyscosis infections in India found that diabetes was the most common underlying disease, occurring in 54% to 76% of cases.

While the infection is treatable, the CDC estimates a death rate of around 50%, but this varies depending on the underlying conditions, the type of fungus, and the area of ​​the body affected.

However, the Indian State Council for Medical Research (ICMR) said that patients who have been in intensive care units for long periods of time or are immunocompromised due to steroids may also be at risk.

Many severe Covid-19 patients in India are treated with corticosteroids such as dexamethasone, an anti-inflammatory drug that also decreases the immune system’s ability to fight infections and other diseases to relieve symptoms and make them more susceptible.

A government official reportedly said last week that there is “no major outbreak” of the fungal infection in India.

What are the symptoms?

The ICMR issued a notice over the weekend urging doctors and patients to look out for early symptoms.

These include nasal congestion and discharge, unilateral facial pain, numbness or swelling, toothache and loosened teeth, blurred or double vision, redness around the eyes, fever, difficulty breathing and chest pain.

Treatment options include antifungal therapy, Reducing or stopping steroids and other drugs that suppress the immune system, while more severe cases, according to the ICMR, may require surgery to remove all necrotic tissues from the body.

If left untreated for too long, permanent damage such as vision loss and death can result.

Mucormycosis was already present in India before the Covid-19 pandemic began last year. Official data are scarce due to the lack of population-based studies, but some researchers estimate that the prevalence of mucormycosis in the country is about 70 times higher than in the rest of the world.

Categories
Health

Single dose cuts an infection charge by 65%, examine finds

James Shaw, 82, receives Oxford University / AstraZeneca COVID-19 vaccine from advanced nurse Justine Williams on January 4, 2021 at Lochee Health Center in Dundee, Scotland, UK.

Andy Buchanan | Reuters

LONDON – A single dose of the Covid-19 vaccine from Oxford-AstraZeneca or Pfizer-BioNTech drastically reduces the risk of infection in adults of all ages, British researchers have found.

Two studies published on Friday analyzed more than 1.6 million nasal and throat swabs from 373,402 people between December and April. The data was collected as part of the ongoing Covid-19 infection survey carried out by Oxford University, the UK Office for National Statistics and the UK Department of Health and Welfare.

The researchers found that 21 days after a single dose of the Oxford-AstraZeneca or Pfizer-BioNTech vaccine, new Covid infections – both symptomatic and asymptomatic – had decreased by 65%.

Symptomatic infections decreased by 74% three weeks after a single dose of either vaccine, while asymptomatic cases decreased by 57%, the data showed.

A second dose of vaccine reduced the overall infection rate by 70%, reducing symptomatic Covid infections by 90% and asymptomatic cases of the virus by 49%.

The researchers compared these effects to the natural immunity obtained from infection with the virus.

However, they warned that the fact that vaccinated people could still be infected – even if those infections were mostly asymptomatic – meant “transmission possible”.

The study found that vaccines had a similar effect in reducing infection rates in adults of all ages. Their ability to reduce infection was also similar, regardless of whether the participants had long-term health conditions or not.

What about antibody resistance?

The scientists also looked at the effects of Covid vaccinations on participants’ antibody levels.

They found that older adults – especially those over 60 – who had never been infected with Covid had a lower immune response to a single dose of vaccine than those who had previously been infected with the virus.

Antibody responses to two doses of the Pfizer BioNTech vaccine were high in all age groups. The data showed that older adults were able to achieve antibody levels similar to those who received a vaccine dose after a previous Covid infection.

Too few people in the UK had received two doses of the Oxford AstraZeneca vaccine for researchers to assess the effects on antibody response. However, it was found that immune responses to a first dose differed between the Oxford AstraZeneca vaccine and the Pfizer BioNTech vaccine.

Antibody levels rose more slowly after a single dose of the Oxford-AstraZeneca vaccine than after the Pfizer-BioNTech alternative. However, after a dose of the latter, antibody levels fell more rapidly, especially in older adults, so patients achieved antibody levels similar to those seen after an initial dose of the Oxford-AstraZeneca vaccine.

Although immune responses differed between age groups, the scientists emphasized that there was no group that did not respond to either vaccine. However, a small number of people – less than 5% – had poor immune responses to both vaccines.

Important to get the second dose

The Oxford-AstraZeneca vaccine has been approved for use in the UK, India and several other countries, but has been temporarily suspended in some markets amid concerns that it could be linked to rare blood clots. Global health officials have stated that the benefits of giving the vaccine continue to outweigh the risks.

The WHO recommends an interval of eight to 12 weeks between the first and second dose of the Oxford AstraZeneca vaccine.

The Pfizer BioNTech vaccine is also given in several countries, including the United States. The U.S. Centers for Disease Control and Prevention recommends receiving a second dose of the vaccine three weeks after the first.

In February, the UK started a study to see if mixing doses of the Oxford-AstraZeneca and Pfizer-BioNTech vaccines could be effective.

Sarah Walker, professor of medical statistics and epidemiology at Oxford University and chief investigator and academic director of the Covid-19 infection survey, said Friday that scientists are still not sure how strong and how long an antibody response is. was needed for long-term protection against Covid.

David Eyre, associate professor at Oxford University’s Big Data Institute, added that the results released on Friday highlighted the importance of a second dose of vaccine for increased protection.

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Health

WHO chief warns an infection price approaching highest degree ever

The Director General of the World Health Organization (WHO), Tedros Adhanom Ghebreyesus, will attend a press conference at WHO headquarters on July 3, 2020, organized by the Union of Geneva Correspondents’ Association (ACANU) in the context of the COVID-19 outbreak caused by the novel coronavirus was organized in Geneva.

FABRIC COFFRINI | AFP | Getty Images

LONDON – The head of the World Health Organization said Friday that an alarming spike in Covid cases has pushed global infections to the pandemic peak.

“Worldwide cases and deaths continue to rise at a worrying rate,” WHO Director General Tedros Adhanom Ghebreyesus said in a briefing on Papua New Guinea and the western Pacific.

“Globally, the number of new cases per week has almost doubled in the past two months. This is approaching the highest infection rate we’ve seen to date during the pandemic,” he continued.

“Some countries that previously avoided widespread transmission are now seeing large increases in infections,” Tedros said, citing Papua New Guinea as an example.

Tedros said the United Nations Department of Health will continue to assess developments in the coronavirus crisis and “adjust advice accordingly”.

According to Tedros, the WHO Emergency Committee met on Thursday in accordance with international health regulations and expected to receive their advice on Monday.

“Globally, our message to all people in all countries remains the same. We all play a role in ending the pandemic,” he said.

According to the Johns Hopkins University, more than 139 million Covid cases have been reported worldwide with 2.9 million deaths.

The WHO declared the coronavirus a global pandemic on March 11, 2020.

“Shocking Imbalance”

Tedros previously said that one of WHO’s top priorities is to increase the ambitions of COVAX, an initiative for equitable access to Covid vaccines around the world, to help all countries end the pandemic.

The COVAX plan was supposed to deliver nearly 100 million vaccines to people by the end of March, but has only distributed around 38 million doses.

WHO hopes the initiative can catch up in the coming months, but condemns what it calls a “shocking imbalance” in the distribution of vaccines between high and low-income countries.

The health department has also criticized countries that, for political or commercial reasons, sought their own vaccine agreements outside the COVAX initiative.

Earlier this year, Tedros warned the world was facing “catastrophic moral failure” because of vaccine inequality.

He said a “I-first” approach to vaccines would put the world’s poorest and most vulnerable people at risk, adding the approach was “self-destructive” as it would encourage hoarding and likely prolong the health crisis.

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Politics

‘Important’ Migrant Farmworkers Threat An infection and Deportation

Food and farm workers in California are more likely to die of Covid-19 than any other industry. But while other industries were closing, the agriculture business continued, relying on a largely undocumented workforce that the federal government identified as essential. “California’s Covid-19 vaccination effort has begun.” “Proponents of farm workers say their turn should be next for vaccines for national food security reasons.” As early as January, Riverside County began its first large-scale vaccination measures for farm workers. However, the challenges showed how marginalized this community has become. “Vaccinating Illegal Migrants About the American People.” “Put Americans first. Put Americans first. “Now the plight of these workers is driving Congress to implement important immigration reforms. At stake is a path to citizenship for approximately one million undocumented workers across the country. “Farm workers were on the front line. You deserve the opportunity to take steps toward legal status. “The promise of amnesty for those who are already here illegally encourages more foreigners to come illegally.” This is usually an inspection point on a grape and date farm. When Riverside County distributed their first vaccines to farm workers, they brought them here. “Today we vaccinate farm workers. We supply 250 vaccines. But it’s a very large community, about 20,000 to 30,000 farm workers. And to achieve herd immunity, we have to vaccinate at least 70 percent of our population. Known for Palm Springs and world-class golf courses, Riverside County is also home to the agricultural region of the Eastern Coachella Valley, where the Covid positivity rate hit nearly 40 percent in December. “We know that they are in close contact with other people. And so we know that the transmission possibilities are really great. But it was really amazing. My job is to keep our community healthy. If someone gets Covid-19, whether it is undocumented or not, they can pass it on to the community like any other person. “But while prioritizing farm workers on paper is one thing, actually getting shots in the arms is another. “Your access to resources is not there. Right, there isn’t a lot of public transport or doctors or clinics in the area. “In order to reach these workers, the county had to go to their employers. “Hey Brett, really, really good news for you. Friday, vaccinations for your employees. ” “No way!” Janell Percy is the executive director of the Coachella Valley Growers Association. Recently, she has been a de facto county health agency, coordinating vaccination clinics through her network of local farm owners. “This process was very challenging. There were so many strangers. You know, I’m used to working with plants more than people, I guess. So I got you for 25 right? “” Ah yes. “” You know, everyone is concerned. I’ve told everyone to just be patient. Could be weeks. It could be months. At this point I don’t know. “But not everyone is on Janells List. Smaller farms like this one may not pay into the association. Many workers track seasonal crops from farm to farm, and some use borrowed social security numbers with employers. These workers may not even be aware of the county’s mobile vaccination efforts. Hence, has The county also rely on community organizations to reach people more directly. Luz Gallegos leads one of these groups. She grew up here, herself the child of undocumented farm workers. “We have told the community that your health should always come first and prevention is key. And if you are not alive you will never see a green card. But we can Do not condemn the community for not trusting the government. “” Farm workers have always been important, but they were never treated as such. ” There are an estimated 800,000 farm workers in California alone. Nationwide, the number is between two and three million. “As we approach high season we will have to accelerate exponentially to vaccinate farm workers or we will see many more die of Covid-19.” Alberto and Marina have lived with a fear of ICE and arrest since they came here. It’s an experience Marina knows firsthand. She was caught crossing the border three years ago. “Basic workers shouldn’t have to worry about whether or not they will see their children at the end of the day, whether or not they will be deported.” Raul Ruiz grew up in these fields. He became a doctor, then ran for Congress and won. He is now in his home district teaching farm workers about the vaccine. For Dr. Getting the vaccine to farm workers is not enough for Ruiz. In March he helped bring the Farm Workers Modernization Act into the house. The law would provide protection and a path to legalization for undocumented farm workers. “They literally die from feeding you. We need to protect and secure our food supply chain. If there is a moment to instill empathy and understanding to protect them from separation from their families, it is now. “It will exacerbate the humanitarian crisis on the border.” “The road to citizenship as a reward for violating our laws.” The law was passed with the support of both parties, but there will be an uphill battle in the Senate. Meanwhile, other states are joining California and starting vaccinating farm workers. They realize that the only way out of the pandemic is for everyone to take turns.

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Health

Eli Lilly Claims Drug Prevents Coronavirus An infection in Nursing Houses

An unusual experiment to prevent nursing home employees and residents from being infected with the coronavirus is successful, drug manufacturer Eli Lilly announced on Thursday.

A drug containing monoclonal antibodies – laboratory-bred virus fighters – prevented symptomatic infections in residents who have been exposed to the virus, even in the frail elderly, who are most vulnerable. This is based on preliminary results from a study conducted in collaboration with the National Institutes of Health.

The researchers found an 80 percent reduction in infections in residents who received the drug compared to those who received a placebo and a 60 percent reduction in staff, results that were very statistically meaningful, Eli Lilly said.

The data has not yet been reviewed or published by experts. The company expects to present the results at a future medical meeting and publish them in a peer-reviewed journal, but did not say when.

The study included 965 participants in nursing homes: 666 employees and 299 residents. (The company had hoped more residents would attend, but it proved difficult to enroll. Many had dementia and others were suspicious of intravenous medication.)

There were four deaths from Covid-19 among study participants. All of them were among those living in nursing homes who were given a placebo, not the drug.

The drug Bamlanivimab already has an emergency approval from the Food and Drug Administration, which enables Eli Lilly to make it available to symptomatic patients early in the course of their infection.

However, this study asked if the drug could stop infections before they started. It was an unusual experiment: medical staff rushed to nursing homes in trucks equipped with mobile laboratories as soon as a single infection was found there. Once the workers arrived, they set up temporary infusion centers to administer the drug.

The research ended that weekend with an emergency meeting of the Data Protection and Monitoring Committee, an independent group that oversees the incoming results. The data was strong and convincing enough to bring the placebos to a halt.

Covid19 vaccinations>

Answers to your vaccine questions

If I live in the US, when can I get the vaccine?

While the exact order of vaccine recipients may vary from state to state, most doctors and residents of long-term care facilities will come first. If you want to understand how this decision is made, this article will help.

When can I get back to normal life after vaccination?

Life will only get back to normal once society as a whole receives adequate protection against the coronavirus. Once countries have approved a vaccine, they can only vaccinate a few percent of their citizens in the first few months. The unvaccinated majority remain susceptible to infection. A growing number of coronavirus vaccines show robust protection against disease. However, it is also possible that people spread the virus without knowing they are infected because they have mild symptoms or no symptoms at all. Scientists don’t yet know whether the vaccines will also block the transmission of the coronavirus. Even vaccinated people have to wear masks for the time being, avoid the crowds indoors and so on. Once enough people are vaccinated, it becomes very difficult for the coronavirus to find people at risk to become infected. Depending on how quickly we as a society achieve this goal, life could approach a normal state in autumn 2021.

Do I still have to wear a mask after the vaccination?

Yeah, but not forever. The two vaccines that may be approved this month clearly protect people from contracting Covid-19. However, the clinical trials that produced these results were not designed to determine whether vaccinated people could still spread the coronavirus without developing symptoms. That remains a possibility. We know that people who are naturally infected with the coronavirus can spread it without experiencing a cough or other symptoms. Researchers will study this question intensively when the vaccines are introduced. In the meantime, self-vaccinated people need to think of themselves as potential spreaders.

Will it hurt What are the side effects?

The vaccine against Pfizer and BioNTech, like other typical vaccines, is delivered as a shot in the arm. The injection is no different from the ones you received before. Tens of thousands of people have already received the vaccines, and none of them have reported serious health problems. However, some of them have experienced short-lived symptoms, including pain and flu-like symptoms that usually last a day. It is possible that people will have to plan to take a day off or go to school after the second shot. While these experiences are not pleasant, they are a good sign: they are the result of your own immune system’s encounter with the vaccine and a strong response that ensures lasting immunity.

Will mRNA vaccines change my genes?

No. Moderna and Pfizer vaccines use a genetic molecule to boost the immune system. This molecule, known as mRNA, is eventually destroyed by the body. The mRNA is packaged in an oily bubble that can fuse with a cell, allowing the molecule to slide inside. The cell uses the mRNA to make proteins from the coronavirus that can stimulate the immune system. At any given point in time, each of our cells can contain hundreds of thousands of mRNA molecules that they produce to make their own proteins. As soon as these proteins are made, our cells use special enzymes to break down the mRNA. The mRNA molecules that our cells make can only survive a few minutes. The mRNA in vaccines is engineered to withstand the cell’s enzymes a little longer, so the cells can make extra viral proteins and trigger a stronger immune response. However, the mRNA can hold for a few days at most before it is destroyed.

“When I saw the results table, my jaw dropped,” said Dr. Myron Cohen, professor of medicine at the University of North Carolina at Chapel Hill and principal researcher who helped design and conduct the study.

Although the study has ended, Dr. Daniel Skovronsky, Eli Lilly’s chief scientist, said the company would continue to rush to nursing homes on its study network if an outbreak is detected. “Everyone will get the drug,” he said.

Experts who did not take part in the study were delighted, but emphasized that they had not yet seen complete data. “I only see positive results here,” said Dr. Ofer Levy, director of the Precision Vaccination Program at Boston Children’s Hospital. “That’s a win.”

Dr. Kathleen Neuzil, director of the Center for Vaccine Development and Global Health at the University of Maryland Medical School, was also encouraged.

“The mortality effect is remarkable,” she said, adding that the drug should be used more widely to prevent and treat Covid-19, “especially in populations such as nursing home residents who have high mortality rates and may not respond optimally to vaccines . ” ”

Vaccines also protect people from contracting the virus, of course, and nursing home staff and residents were among the first group to be prioritized for the shots. But supplies are inadequate, and many nursing home workers who fear the vaccines have refused to get them.

And after vaccination, it can take six weeks for the body to produce enough antibodies for maximum protection, said Dr. Srilatha Edupuganti, vaccine researcher at Emory University in Atlanta and study researcher.

Treatment with monoclonal antibodies could provide almost equivalent protection immediately, although it does not last as long as the protection offered by a vaccine.

Eli Lilly plans to reach out to the FDA for an emergency clearance to use the drug to help prevent infection in frail elderly populations, especially in nursing homes or long-term care facilities, said Dr. Skovronsky.