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EU prepares authorized motion in opposition to AstraZeneca over vaccine supply points

EU prepares legal action against AstraZeneca over vaccine delivery issues

President of the EU Commission Ursula von der Leyen

Thierry Monasse | Getty Images News | Getty Images

LONDON – The European Union is preparing legal action against AstraZeneca for insufficient supply of its coronavirus vaccine, according to four people familiar with the matter.

The EU and the pharmaceutical company were at odds several times this year. Anglo-Swedish company AstraZeneca said it couldn’t deliver as many vaccines as the block expects in both the first and second quarters. This has delayed the rollout of Covid-19 vaccines in the 27 EU countries.

The European Commission, the EU’s executive branch, told the 27 European ambassadors at a meeting on Wednesday that they were considering legal action against AstraZeneca over these delivery issues, four EU officials who said they refused to be named due to the sensitivity of the issue CNBC Thursday. Politico first reported on the Commission’s plan late Wednesday.

“The commission wants to act quickly. It’s a matter of days,” one of the officials told CNBC over the phone, adding that the ambassadors had given “great support” to the legal process.

The same official stated that “few legal issues” were considered before the trial proceeded.

A second official said the Commission is taking this step to ensure that upcoming deliveries are as expected.

When a European Commission spokesman was contacted by CNBC on Thursday, he said: “It is critical that we ensure the delivery of a sufficient number of cans in line with the company’s previous commitments.”

“Together with the member states, we are examining all possibilities to achieve this,” said the same spokesman, without confirming or denying that legal action has been considered.

In March, the President of the European Commission, Ursula von der Leyen, expressed her disappointment with AstraZeneca during a press conference and said: “Unfortunately, AstraZeneca has produced too little and delivered too little. And of course this has painfully slowed the vaccination campaign. “

At the time, von der Leyen said the block was expecting 70 million cans from the company in the second quarter, compared to an originally expected 180 million.

Pascal Soriot, CEO of AstraZeneca, told EU lawmakers in February that low yields in EU manufacturing facilities were causing the delays.

A medical worker holds a vial containing the AstraZeneca COVID-19 vaccine at a vaccination center in Ronquieres, Belgium, on April 6, 2021.

Yves Herman | Reuters

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After Coronary heart Assault, British Man’s Submit Resonates on LinkedIn

After Heart Attack, British Man’s Post Resonates on LinkedIn

Jonathan Frostick, program manager at an investment bank in London, said he couldn’t breathe as he sat at his computer on a Sunday afternoon preparing for the work week ahead. His chest contracted and his ears started to pop. He’s had a heart attack.

His first thoughts were how this would disrupt his work life.

“I had to meet with my manager tomorrow,” wrote Mr. Frostick, who works for HSBC, in a post on LinkedIn. “It’s not convenient.”

Later, while recovering in a hospital bed, Mr. Frostick began investigating his life, he wrote. Under a photo of himself in his hospital bed, he made new vows for his future life:

“I don’t spend all day with Zoom anymore.”

“I’m restructuring my approach to work.”

He couldn’t stand playing drama in the workplace any longer. “Life is too short,” he wrote.

Finally: “I want to spend more time with my family.”

Since describing his revelation a week ago, his post has been liked over 200,000 times. It has received more than 10,000 comments from readers describing how their own deaths resulted in them stepping down from work and taking stock of the way they lived their lives.

The post caught on at a time when tired people around the world are experiencing boredom, anxiety, and more work-related stress during the coronavirus pandemic.

Even those lucky enough to keep their jobs have questioned their purpose in life as they spend long hours on Zoom calls and answering emails late into the night.

At the same time, employees who have managed to strike a better balance between their work and personal lives during the pandemic are now expecting to return to the office so they need to reassess how much time they want to spend on work.

“I have known countless people over the past few years who have suffered from life-threatening illnesses simply because there is no downtime – always on call,” wrote a management consultant from Alberta, Canada, in response to Mr. Frostick’s post. “It is absolutely harmful to health, but we are building on the existence that we have to keep pushing forward.”

Another person described being so burned out at work that she was admitted to a mental hospital.

“I’m telling you, brother,” wrote a self-described Nigerian entrepreneur who said he had sold his numerous cars and houses to lead a happier, more “spartan” life. “Bro, welcome to real life. Now you will really, really live. “

In business today

Updated

April 21, 2021, 6:16 p.m. ET

Others gave him tips on how to lose weight – Mr. Frostick also vowed to lose 50 pounds – or asked him to appear on their podcasts so he could share his story with their listeners.

In addition to compensation and professional status, a job offers social rewards, such as praise from colleagues and supervisors, which can be addicting, said Glen Kreiner, professor of management at the University of Utah.

People protect the identity that a job creates for them so much that they work long and tedious hours without pausing to check if they are happy or fulfilled in order to protect them, Professor Kreiner said.

“We humans tend to be thoughtless rather than mindful,” he said. “When we’re in a thoughtless state, we’re on autopilot.”

Professor Kreiner added: “So sometimes it takes a disaster like this to break us off the autopilot.”

Mr. Frostick did not immediately respond to a message for comment.

In an interview with Bloomberg News, Mr Frostick, father of three young children, said he and his colleagues “spent a disproportionate amount of time on Zoom calls” during the pandemic.

Before the heart attack, Mr. Frostick worked 12-hour days, missed his colleagues and suffered from the isolation of working from home.

“We’re unable to have these other conversations from the side of a desk or at the coffee maker, or take a walk and talk,” Frostick told Bloomberg. “That was pretty profound not just in my work, but in the entire professional services industry.”

Robert A. Sherman, a spokesman for HSBC, said the company had told employees the importance of balancing work and healthy living.

“We all wish Jonathan a full and speedy recovery,” he said in an email. “We also recognize the importance of personal health and well-being, as well as a good work-life balance. The answer to this topic shows how preoccupied people are with this, and we encourage everyone to make their health and wellbeing a top priority. “

On Wednesday, Mr. Frostick thanked the thousands of people who had written to him and wrote that he could now move around his house for two to three hours at a time.

He later wrote another post indicating that he had moved from soul searching to attempting to answer profound philosophical questions.

“Who am I? It’s like a riddle my mind can’t solve,” he wrote. “I have no idea who I am. It will take some time … Can you answer who you are?”

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Day by day U.S. information on April 21

Daily U.S. data on April 21

Medical technician Janette Serrano injects Henry Perez (71) with a Covid-19 vaccine that is offered at the Bell Community Center.

Robert Gauthier | Los Angeles Times | Getty Images

According to the Centers for Disease Control and Prevention, the vaccination rate in the US has sustained over 3 million shots a day for two weeks.

This number is based on a 7-day average of daily reported vaccinations and has declined slightly in recent days, from a high of 3.4 million reported shots per day on April 13 to just over 3 million on Tuesday.

About 40% of Americans have received at least one shot, CDC data shows, and about one in four are fully vaccinated.

US vaccine shots administered

About 1.8 million vaccines were administered in the US on Tuesday, mostly due to weekend vaccinations due to a delay in data reporting. Vaccination counts reported on Mondays and Tuesdays are usually the lowest of the week.

The 7-day average of daily recordings, used to smooth out variations in weekday coverage, is 3 million.

The slight decrease in the daily pace may be due in part to research on the Johnson & Johnson vaccine. The Food and Drug Administration advised states earlier this month to suspend the use of J & J’s shot “out of caution” after six women developed a rare bleeding disorder.

Although the J&J vaccine accounts for less than 4% of the total of 213 million vaccines administered in the U.S., it was used for an average of nearly 425,000 reported shots per day at peak levels in mid-April.

Government officials said the country has enough Pfizer and Moderna vaccines to maintain a pace of 3 million shots a day.

US percentage of the vaccinated population

More than 133 million people, or 40.1% of the US population, have received one or more doses of a Covid-19 vaccine. About one in four Americans is fully vaccinated.

Of those over 65, more than 80% are at least partially vaccinated and 65% are fully vaccinated.

Progress varies from country to country. In one state, New Hampshire, more than half of the population has received at least one bump, and Connecticut, Maine, and Massachusetts are well on their way to hitting the 50% mark in the coming days.

More than 40% of residents in 24 states and the District of Columbia are at least partially vaccinated.

In Mississippi and Alabama, only 30% of residents got a chance, in Louisiana it is 31% and in Tennessee 32%.

US Covid cases

The US reports an average of 63,800 new infections per day based on a weekly average of data collected by Johns Hopkins University. This level has seen a downtrend in the past few days but is above the recent low of 53,600 average daily cases recorded in late March.

US Covid deaths

Around 700 deaths from Covid are reported daily in the US, based on a 7-day average of Hopkins data, compared to peaks of around 3,400 per day in mid-January.

The nationwide death toll since the pandemic began is more than 568,400.

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No Being pregnant Danger Discovered From 2 Covid-19 Vaccines, Preliminary Analysis Exhibits

No Pregnancy Risk Found From 2 Covid-19 Vaccines, Preliminary Research Shows

In an early analysis of coronavirus vaccine safety data, researchers from the Centers for Disease Control and Prevention found no evidence that the Pfizer-BioNTech or Moderna vaccines posed a serious risk during pregnancy.

The results are preliminary and only cover the first 11 weeks of the US vaccination program. The study, which included self-reported data on more than 35,000 people who received any of the vaccines during or shortly before pregnancy, is the largest to date on the safety of coronavirus vaccines in pregnant women.

Pregnant women were excluded during clinical trials with the vaccines. Patients, doctors and experts were therefore unsure whether the shots could be safely administered during pregnancy.

“There is great concern about whether it is safe and whether it would work and what to expect in terms of side effects,” said Dr. Stephanie Gaw, a Maternal-Fetal Medicine Specialist at the University of California at San Francisco.

The new data, said Dr. Gaw, show that “many pregnant people receive the vaccine, there is no significant increase in adverse pregnancy effects at this point and that the side effect profiles are not very similar to pregnant people.”

“I think this is all very comforting,” she said, “and I think it will really help public health providers and officials recommend the vaccine more strongly during pregnancy.”

Covid-19 carries serious risks during pregnancy. Pregnant women who develop symptoms of the disease are more likely to become seriously ill and die more often than non-pregnant women with symptoms.

Because of these risks, the CDC has recommended providing coronavirus vaccines to pregnant women, but also suggests that they consult their doctor when deciding whether to vaccinate.

The new study, published Wednesday in the New England Journal of Medicine, is largely based on self-reported data from V-safe, the CDC’s coronavirus vaccine safety monitoring system. Participants in the program use a smartphone app to regularly conduct surveys about their health and possible side effects after receiving a Covid-19 vaccine.

The researchers analyzed the side effects of V-Safe participants who received either the Pfizer or Moderna vaccine between December 14, 2020 and February 28, 2021. They focused on 35,691 participants who said they were pregnant when they received the vaccine or became pregnant shortly afterwards.

After vaccination, pregnant participants reported the same general pattern of side effects as non-pregnant women, the researchers noted: injection site pain, fatigue, headache, and muscle pain.

What You Need To Know About The Johnson & Johnson Vaccine Break In The United States

    • On April 13, 2021, U.S. health officials called for an immediate halt to use of Johnson & Johnson’s single-dose Covid-19 vaccine after six recipients in the U.S. developed a rare blood clot disorder within one to three weeks of being vaccinated.
    • All 50 states, Washington, DC, and Puerto Rico have temporarily stopped using the vaccine or recommended providers are suspending use of the vaccine. The U.S. military, government-run vaccination centers, and a variety of private companies, including CVS, Walgreens, Rite Aid, Walmart, and Publix, also paused the injections.
    • Fewer than one in a million Johnson & Johnson vaccinations are currently being studied. If there is indeed a risk of blood clots from the vaccine – which has yet to be determined – the risk is extremely small. The risk of contracting Covid-19 in the United States is much higher.
    • The hiatus could complicate the country’s vaccination efforts at a time when many states are facing spikes in new cases and are trying to address vaccine hesitation.
    • Johnson & Johnson had also decided to delay the launch of its vaccine in Europe amid concerns about rare blood clots. However, the company later decided to continue its campaign after the European Union Medicines Agency announced the addition of a warning. South Africa, devastated by a contagious variant of the virus, stopped using the vaccine and Australia announced it would not buy doses.

Pregnant women were slightly more likely to report injection site pain than women who did not, but were less likely to report the other side effects. They were also slightly more likely to report nausea or vomiting after the second dose.

Pregnant V-safe participants also had the option of enrolling in a special register that recorded pregnancy and infant results.

By the end of February, 827 of the people on the pregnancy register had completed their pregnancies, of which 86 percent resulted in a live birth. The incidence of miscarriages, premature births, low birth weight, and birth defects were consistent with those reported in pregnant women prior to the pandemic, the researchers report.

“This study is critical for pregnant people,” said Dr. Michal Elovitz, a maternal-fetal medicine specialist at the University of Pennsylvania, in an email. “It’s very comforting that no acute events have been reported in pregnant people,” she said as the study progressed.

However, the report has several caveats, and experts say a lot more research is needed. Participation in the monitoring programs is voluntary and the data is reported by yourself.

Since the study period only spanned the first few months of the US vaccination campaign, the vast majority of those on the pregnancy registry were healthcare workers. And there is still no data on pregnancy outcomes for people vaccinated in the first trimester of pregnancy.

“I think we can feel more secure if we recommend the vaccine during pregnancy, especially in pregnant people who are at risk of Covid,” said Dr. Gaw. “But we do I will have to wait for more data to get full pregnancy results from early pregnancy vaccines. “

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Biden provides replace on Covid vaccination marketing campaign

Biden gives update on Covid vaccination campaign

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President Joe Biden will propose a tax credit for small and medium-sized businesses that offer their employees paid vacation to get vaccinated against Covid and recover from possible side effects.

Biden will also announce that this week the U.S. will hit 200 million Covid shots that have been given since he took office.

Biden will also urge employers to use their resources to encourage and incentivize more people to vaccinate. The US vaccination rate appears to have decreased slightly in the past few days.

The White House has maintained the urgency of vaccinations, stressing that Covid remains a serious threat – especially as highly contagious variants spread across the US

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Meet Digital Actuality, Your New Bodily Therapist

Meet Virtual Reality, Your New Physical Therapist

The company has registered all of its programs with the FDA, said Eran Orr, founder and chief executive officer.

Not all programs offered for VR rehab are games. In some clinics, a patient can use the practical skills they may have problems with, such as B. practicing grocery shopping or washing dishes virtually.

To really advance the use of virtual reality in physical therapy and occupational therapy, we need to “produce a set of evidence that shows it is effective, how we can pay for it, and how we can develop it in an easy-to-use way”. said Matthew Stoudt, CEO and founder of Applied VR, which delivers therapeutic virtual reality. “We have to be able to demonstrate that we can reduce the costs of care and not just expand the cost paradigm.”

While research specifically on the use of VR in physical therapy and occupational therapy is still in its infancy, an analysis of 27 studies conducted by Matt C. Howard, an assistant professor of marketing and quantitative methods at the University of South Alabama, found that this is the case with VR therapy is generally more effective than conventional programs.

“Does that mean VR is better for everything? Of course not, ”he said in an interview. “And there’s a lot we don’t know about VR rehab.”

Much of the research uses small samples of varying degrees of rigor, and there is more need to study how a patient’s activity in the virtual world translates into improved performance in the physical world, said Danielle Levac, an assistant professor in the division of Physiotherapy, Exercise and Rehabilitation Sciences from Northeastern University. Professor Levac explores the reasons for using virtual reality systems in pediatric rehabilitation. Many of the children she works with have cerebral palsy.

“We have to consider the downside of not having face-to-face contact with therapists,” she said. “I see VR as a tool with a lot of potential, but we should keep in mind that it fits into an overall care program and doesn’t replace it.”

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FDA finds poor situations at Baltimore plant that ruined J&J doses

FDA finds poor conditions at Baltimore plant that ruined J&J doses

A detail of Janssen Johnson & Johnson’s COVID-19 vaccine that is not currently being issued because it has been on hold.

Allen J. Cockroaches | Los Angeles Times | Getty Images

The Food and Drug Administration said Wednesday a facility in Baltimore that ruined millions of Johnson & Johnson Covid-19 vaccine doses was unsanitary and unsuitable for making the shots.

The FDA asked Emergent BioSolutions, which operates the facility, to temporarily suspend production of materials for Covid-19 vaccines earlier this month as the U.S. agency initiated an inspection.

“The company has not adequately trained personnel involved in manufacturing operations, quality control sampling, weighing and dispensing, and engineering operations to prevent drug cross-contamination,” FDA investigators wrote in the report.

The eight-day inspection earlier this month revealed a number of alarming quality issues throughout the facility.

In a 13-page report, the inspectors wrote that the facility used to manufacture the vaccine “was not kept in a clean and sanitary condition” and “was not of the appropriate size, design and location for cleaning, maintenance and to facilitate proper operation. “”

FDA inspectors said paint was peeling in multiple places and walls were damaged, which could affect the facility’s “ability to adequately clean and disinfect.” They also found that when handling waste or materials used to make vaccines, employees did not follow standard operating procedures to ensure they were not contaminated.

The facility has not been approved by the FDA to manufacture or distribute Johnson & Johnson’s Covid-19 vaccine, and none of the doses manufactured at this facility have been marketed for use in the United States.

In a statement, J&J said it had “stepped up its oversight of drug manufacturing at the Emergent BioSolutions Bayview facility, including additional controls and personnel, to ensure that the quality standards of our company and the US Food & Drug Administration ( FDA) are complied with. “”

“Johnson & Johnson will exercise its regulatory authority to ensure that all FDA observations are promptly and fully considered,” it said.

Robert Califf, former FDA commissioner under the Obama administration, said that while the problems at the Baltimore plant appear “troubling”, manufacturing issues are emerging and one reason FDA oversight is so important.

“Supply chain and manufacturing are really complicated issues, but that’s why you need an FDA and inspections, and it’s the shared responsibility of the FDA and the companies themselves,” he told CNBC in a telephone interview.

Earlier this month, the Biden administration hired J&J to run the Baltimore facility after US officials learned that Emergent, a contract manufacturer that made vaccines for J&J and AstraZeneca, mixed the ingredients for the two shots would have. Officials also stopped production of the AstraZeneca vaccine.

The interruption in production of new materials is the most recent setback for J & J. Last week, the FDA and Centers for Disease Control and Prevention advised states to temporarily discontinue use of J & J’s vaccine “out of caution” after six Women had developed a rare but potentially life-threatening bleeding disorder in which one person was dead and one was in critical condition. A key CDC panel is due to meet on Friday to make a recommendation on how to use the vaccine.

The FDA said Wednesday that its actions at the Baltimore facility had nothing to do with the ongoing evaluation of the coagulation cases.

This is a developing story. Please try again.

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Meet Digital Actuality, Your New Bodily Therapist

Meet Virtual Reality, Your New Physical Therapist

The company has registered all of its programs with the FDA, said Eran Orr, founder and chief executive officer.

Not all programs offered for VR rehab are games. In some clinics, a patient can use the practical skills they may have problems with, such as B. practicing grocery shopping or washing dishes.

To really advance the use of virtual reality in physical therapy and occupational therapy, we need to “produce a set of evidence that shows it is effective, how we can pay for it, and how we can develop it in an easy-to-use way”. said Matthew Stoudt, CEO and founder of Applied VR, which delivers therapeutic virtual reality. “We have to be able to demonstrate that we can reduce the costs of care and not just expand the cost paradigm.”

While research specifically on the use of VR in physical therapy and occupational therapy is still in its infancy, an analysis of 27 studies conducted by Matt C. Howard, an assistant professor of marketing and quantitative methods at the University of South Alabama, found that this is the case with VR therapy is generally more effective than conventional programs.

“Does that mean VR is better for everything? Of course not, ”he said in an interview. “And there’s a lot we don’t know about VR rehab.”

Much of the research uses small samples of varying degrees of rigor, and there is more need to study how a patient’s activity in the virtual world translates into improved performance in the physical world, said Danielle Levac, an assistant professor in the division of Physiotherapy, Exercise and Rehabilitation Sciences from Northeastern University. Professor Levac explores the reasons for using virtual reality systems in pediatric rehabilitation. Many of the children she works with have cerebral palsy.

“We have to consider the downside of not having face-to-face contact with therapists,” she said. “I see VR as a tool with a lot of potential, but we should keep in mind that it fits into an overall care program and doesn’t replace it.”

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5 issues to know earlier than the inventory market opens Tuesday, April 20

5 things to know before the stock market opens Thursday, April 15

Here are the top news, trends, and analysis investors need to get their trading day started:

1. Stocks fall after Dow, S&P 500 falls from record close

Traders on the floor of the New York Stock Exchange.

Source: NYSE

US stock futures fell Tuesday as investors factor in quarterly results of four Dow components and look forward to Netflix gains and an afternoon Apple product event. Apple is expected to introduce new iPads, iMacs and AirTags for device tracking. Tobacco supplies came under pressure after the Wall Street Journal reported that the White House could order tobacco companies to lower nicotine levels in all cigarettes.

The Dow Jones Industrial Average started the week after the record close on Friday. The S&P 500 also fell slightly from its previous record close. The Nasdaq lost 1% on Monday after shyly surfacing on Friday after the tech-heavy index’s record close in February. The 10-year government bond yield remained stable early Tuesday after rising above 1.6%. However, it remained below the last month’s high of 14 months.

2. Four Dow stocks are reporting gains, including J&J and IBM

Dow stocks Johnson & Johnson, Procter & Gamble and Travelers reported results before the bell. IBM, also a Dow stock, released quarterly results late Monday.

  • J&J surpassed first quarter earnings and sales estimates, including $ 100 million in sales of its Covid vaccine suspended in the U.S. as health officials investigate rare but serious blood clotting problems. CFO Joseph Welk told CNBC Tuesday that he hoped the “benefit-risk profile” for the company’s vaccine would have an impact. Shares fell in the pre-market.
  • P&G exceeded expectations for earnings and sales in the third quarter of fiscal as consumers maintained Covid buying trends like buying more detergents and starting to buy beauty products again. Shares fell in the pre-market.
  • Travelers reported better than expected results in the first quarter. The receipts were broadly in line with the estimates. The insurance giant increased its dividend and added $ 5 billion to its buyback program. In the pre-market the shares rose by 1%.
  • IBM achieved profits and sales in the first quarter that were above estimates. The enterprise technology and services provider saw revenue growth after four quarters of decline. In the pre-market the shares rose by almost 3%.

3. United Airlines is reporting a quarterly loss for the fifth consecutive year

Travelers arrive in Chicago, Illinois for flights at O’Hare International Airport on March 16, 2021.

Scott Olson | Getty Images

United Airlines shares fell 2.5% on the Tuesday prior to entering the market, the morning after the airline reported an above-expected loss of $ 7.50 per share in the first quarter, the fifth straight quarterly loss. Revenue of $ 3.22 billion was down nearly 60% year over year and fell short of estimates. Higher fuel costs and continued subdued demand due to Covid detracted from results. However, United expects profitability to pick up again later this year as Covid vaccinations surge and governments relax travel restrictions.

4. Elon Musk says the autopilot did not activate in the Tesla crash in Texas

A Tesla logo on a Model S is photographed at a Tesla dealer in New York.

Lucas Jackson | Reuters

Elon Musk denied that Tesla’s automated driving systems were involved in a fatal accident in the suburb of Houston, Spring, Texas on Saturday. The Tesla CEO tweeted on Monday: “Previously restored data logs show that autopilot was not activated.” Local police said no one was in the driver’s seat when the 2019 Tesla Model S turned off the road and went up in flames. The two men in the car died. Two federal agencies, the NHTSA and the NTSB, are working with local police to investigate the accident. Preliminary results are inconclusive.

5. A fortified city in Minneapolis awaits Chauvin’s verdict

Former Minneapolis Police Officer Derek Chauvin participates in the final skirmishes during his trial of second degree murder, third degree murder, and second degree manslaughter in the death of George Floyd with defense attorney Eric Nelson in Minneapolis, Minnesota on April 19, 2021 Still from video.

Pool via Reuters

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Empty Center Seats on Planes Reduce Coronavirus Danger in Examine

Empty Middle Seats on Planes Cut Coronavirus Risk in Study

Leaving the center seats vacant during a flight could reduce passenger exposure to coronavirus in the air by 23 to 57 percent. This is what researchers reported in a new study that modeled how aerosolized virus particles spread in a simulated aircraft cabin.

“Next is always better in terms of exposure,” said Byron Jones, a mechanical engineer at Kansas Sate University and co-author of the study. “It’s true in airplanes, it’s true in cinemas, it’s true in restaurants, it’s true everywhere.”

However, the study may have overestimated the benefits of having empty center seats by ignoring the wearing of masks by passengers.

“It’s important for us to know how aerosols spread in airplanes,” said Joseph Allen, a ventilation expert at Harvard TH Chan School of Public Health who was not involved in the study. But he added, “I am surprised that this analysis is now being published and it makes a big statement that the center seats should be left open as a risk mitigation approach if the model does not take into account the effects of masking. We know that masking is the most effective measure to reduce emissions from inhalation aerosols. “

Although scientists have documented several cases of coronavirus transmission on airplanes, airplane cabins are generally low risk environments as they tend to have excellent ventilation and filtration.

Still, concerns about the risk of air travel have swirled since the pandemic began. Planes are tight environments, and full flights make social distancing impossible. As a precaution, some airlines have started keeping the center seats free.

The new paper, published Wednesday in the Weekly Report on Morbidity and Mortality, is based on data collected at Kansas State University in 2017. In this study, the researchers sprayed a harmless aerosol virus through two mock aircraft cabins. (One was a five-row section of an actual single-aisle aircraft, the other a model of a wide-bodied double-aisle aircraft.) The researchers then monitored how the virus spread in each cabin.

For the new study, researchers from the state of Kansas and the Centers for Disease Control and Prevention used the 2017 data to model how passenger exposure to a virus in the air would change if each middle seat was in one 20-row entrance cabin would remain open.

Depending on the specific modeling approach and the parameters used, keeping the middle seats empty reduced the overall load on the passengers in the simulation by 23 to 57 percent compared to a fully occupied flight.

“Some airlines have been working with a vacant seat policy and this study supports the effectiveness of this intervention in conjunction with other existing measures,” a CDC spokesman said in a statement emailed.

This reduction in risk resulted from increasing the distance between an infectious passenger and others, as well as reducing the total number of people in the cabin, reducing the likelihood that an infectious passenger would be on board at all.

The laboratory experiments on the spread of viruses in aircraft cabins were conducted several years before the current pandemic began and did not take into account any protection that wearing masks could provide.

Masking would reduce the amount of virus infectious passengers release into cabin air and would likely reduce the relative benefit of keeping the center seats open, said Dr. All.

Dr. Jones agreed. “In general, I would think that wearing a mask would make this effect a lot less pronounced,” he said. He also noted that mere exposure to the virus does not mean that anyone will be infected by it.

“To what extent a reduction in exposure could reduce the risk of transmission is not yet known,” said the CDC spokesman.

The cost-benefit analysis is difficult for airlines. However, from a purely health perspective, keeping the center seats open would be helpful to create a buffer between an infectious person and others nearby, according to Alex Huffman, an aerosol scientist at the University of Denver who was not involved in the study . “Removal is important, both for aerosols and for droplets,” he said.