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An advisory panel to the U.S. Food and Drug Administration on Friday recommended a third Pfizer-BioNTech COVID vaccine booster shot for all Americans aged 65 or older, as well as for those deemed to be at high risk for severe illness.

According to The New York Times, that vote came after a near unanimous decision (16 to 2) by the same independent panel of experts that sa...

In kids and teens, symptoms of long COVID rarely last more than 12 weeks, a new international study reports.

The researchers also found that exposure to the highly contagious Delta variant did not result in more serious disease in children compared to earlier variants, and that most cases of COVID-19 were asymptomatic or mild.

Despite those reassurances, the study did include a trou...

U.S. Food and Drug Administration advisors will meet Friday to consider whether it is safe and effective for Americans to receive a third "booster" dose of the Pfizer-BioNTech COVID-19 vaccine.

The FDA posted the materials it intends to use in the review on Wednesday. The advisory panel will review a variety of evidence, including new data from Israel, the Associated Press<...

Health officials are bracing for a viral double whammy this fall and winter.

"This year, we expect influenza and COVID-19 to circulate at the same time," said Dr. Jonathan Grein, director of hospital epidemiology at Cedars-Sinai in Los Angeles.

That's why Grein and his colleagues remind Americans that it's time to get your seasonal flu shot. This fall, it's not only a key to keepin...

As severe cases of COVID-19 rise and demand surges for monoclonal antibody treatments, the U.S. government is ordering more from two key suppliers.

Monoclonal antibodies, which are lab-engineered immune system proteins, can help trigger a healthy immune response against COVID-19 infection.

The Biden administration has also taken over distributing the therapeutics, to help avoid shor...

If you're making your own face mask to protect against COVID-19, three layers of cotton towel fabric are best, researchers from India report.

That recommendation comes after testing how best to block cough droplets moving at different rates, from mild to severe.

"Our results show cotton, towel-based fabrics were most effective among the considered fabrics and must be stitched toget...

People who eat plenty of fruits and vegetables may have a somewhat lower risk of COVID-19 than those with unhealthy diets, a new study suggests.

Of more than 590,000 adults surveyed, researchers found that the quarter with the most plant-rich diets had a 9% lower risk of developing COVID-19 than the quarter with the least-healthy diets.

Their risk of severe COVID-19, meanwhile, was ...

TUESDAY, Sept. 14, 2021 (HealthDay News) – New data out of Israel, to be published this week, could bolster the notion that a third booster shot of the COVID-19 vaccine significantly lowers a recipient's odds for severe illness.

The data is scheduled to be published in the peer-reviewed New England Journal of Medicine, ahead of this week's U.S. Food and Drug Administra...

While in the United States preteens and teens aged 12 to 15 have been eligible for COVID-19 vaccines since the spring, the vaccines are only now becoming available for that age group in the United Kingdom.

According to the Associated Press,on MondayBritain gave its approval for use of the vaccines in children 12 and older as part of a "tool kit" to avoid lockdowns this fall and ...

People with HIV have an increased risk of sudden cardiac death, a new study warns, especially if the virus isn't well-controlled.

Sudden cardiac death occurs when the heart unexpectedly stops beating, usually due to an abrupt electrical malfunction.

"People living with HIV are already known to have a higher risk of heart attack, stroke, heart failure, blood clots in the lungs and pe...

Monoclonal antibody infusions can help prevent severe COVID-19, but the best protection is to get vaccinated, experts say.

Antibodies are made by the immune system to fight infections.

"The problem is that our immune system takes two to three weeks to make good antibodies," said Dr. Turner Overton, co-director of the Alabama Vaccine Research Clinic at the University of Alabama at Bi...

A high amount of coronavirus in the lungs is a major contributor to death in COVID-19 patients, new research shows.

The findings challenge previous theories that simultaneous infections such as pneumonia or an overreaction of the body's immune system are significant factors in COVID-19 deaths, the researchers noted.

To come to that conclusion, the investigators analyzed bacterial an...

A common bug called respiratory syncytial virus (RSV) circulating among American kids during what's normally its off-season may cause concern if parents don't know how to tell it apart from COVID-19, experts say.

Getting RSV during the summer is unusual, but the U.S. Centers for Disease Control and Prevention recently issued an alert about a rise in RSV cases in Southern states.

"We...

A drug that lowers cholesterol might help save hospitalized patients with COVID-19, a new, small Israeli study suggests.

Researchers at Hebrew University of Jerusalem noted that COVID causes a big buildup of cholesterol, which results in inflammation in cells.

In lab experiments, they found that the cholesterol-lowering drug fenofibrate (TriCor) effectively reduced damage to lung ce...

New research delivers an answer to a burning question: When are COVID-19 patients most infectious?

The answer? Two days before and three days after they develop symptoms.

The findings highlight the importance of rapid testing and quarantine if someone is feeling sick, the study authors said.

The researchers also found that infected people are more likely to be asymptomatic if ...

Major pandemics aren't all that rare and they're likely to occur more often in the future, a new study claims.

"The most important takeaway is that large pandemics like COVID-19 and the Spanish flu are relatively likely," study co-author William Pan said in a news release from Duke University, where he is an associate professor of global environmental health.

That points to the nee...

A multi-purpose vaccine that would protect humans against any future COVID-19 variants could one day be possible, a new study suggests.

The key to it all lies in a coronavirus scare that happened nearly two decades ago.

People previously infected with SARS -- the original coronavirus pandemic from 2003 -- produced an incredibly powerful immune response when given the Pfizer COVID-19...

Survivors of severe or long COVID-19 could have greater antibody protection against future infection than those whose illness was shorter or milder, new research suggests.

For the study, a Rutgers University team followed 548 health care workers and 283 other workers from the start of the pandemic. Within six months, 93 (11%) of them tested positive for SARS-CoV-2 or for antibodies agains...

If you suffered a bout of COVID-19 and your lungs took a beating, new research has reassuring news: You will likely be spared long-term respiratory damage.

Scientists looked at COVID-19 survivors who had asymptomatic, moderate or severe COVID-19 infections and also underwent unrelated elective lung operations (for example, to treat lung nodules or lung cancer) at some point after they rec...

Antibodies generated by COVID-19 vaccines are effective against the Delta variant and other coronavirus variants of concern, new research shows.

The findings may help explain why most vaccinated people have avoided the surge of Delta variant cases sweeping across the United States.

"In face of...

Almost 90% of U.S. parents plan to send their kids back to the classroom this fall, but fewer than 60% plan to get a COVID-19 vaccine for those who are old enough, a new poll reveals.

Anxiety is also high among many parents, who wonder just how safe in-person learning will be as the highly contagious Delta variant spreads nationwide and the pandemic grinds on.

"To feel safe sending ...

Texas Governor Greg Abbott has tested positive for COVID-19 but has not experienced any symptoms, his office announced Tuesday.

Abbott, who is fully vaccinated, is being treated with Regeneron's monoclonal antibodies in an effort to shorten the duration of the infection, his communications director Mark Miner said in a statement Tuesday afternoon, CBS News reported.

"The go...

Twenty seconds.

That's how long you need to wash your hands to remove germs, a new physics study confirms.

Typical hand-washing guidelines -- including those from the U.S. Centers for Disease Control and Prevention -- advise scrubbing your hands for a minimum of 20 seconds.

To assess that recommendation, researchers used a mathematical model to examine the key mechanics of h...

While the resurgence of COVID-19 cases in the United States has been dominating the news, an old viral enemy has been making a quieter comeback.

In late spring, U.S. pediatric hospitals began reporting an unexpected rise in serious infections caused by respiratory syncytial virus (RSV).

Unlike COVID-19, RSV is a long-established foe that normally emerges in late fall, peaks in the ...

COVID-19 vaccination triggers a strong immune response in people with HIV, meaning they're likely protected against the coronavirus, a new, small study shows.

"Previous research has suggested a suboptimal response to COVID-19 vaccines in people living with HIV; however, these studies did not fully characterize and define that response, both for cellular [where the immune system directly a...

Masks are making an unwanted comeback in many parts of the United States, after new data showing that fully vaccinated people with "breakthrough" coronavirus infections carry enough virus in their bodies to pose a potential risk to the unvaccinated.

But these breakthrough infections -- which have become slightly more common with the highly transmissible Delta variant -- pose little to no ...

People fully vaccinated with the Moderna COVID-19 vaccine appear to have a lower risk of a "breakthrough" infection caused by the Delta variant than those who received the Pfizer vaccine, a new, preliminary report suggests.

The researchers emphasized that both vaccines still "strongly protect" against severe illness, but the difference appears to be in the degree of pro...

A small, early study suggests that people who've already encountered SARS-CoV-2 may gain a big boost against COVID-19 if they get just one dose of the Pfizer vaccine -- and that protection may extend to new viral variants.

The study "supports the notion that vaccine effectiveness, even against emerging neutralization-resistant [variants], may be improved following an additional vaccine bo...

News that the highly contagious Delta variant of COVID-19 can be picked up and spread by vaccinated folks has sparked confusion and concern, and an infectious disease expert wants to clarify.

These worries follow a recent U.S. Centers for Disease Control and Prevention recommendation that urged even vaccinated folks to wear masks indoors in areas with substantial or high rates of COVID-19...

Antibody levels remain stable or even rise seven months after infection with the SARS-CoV-2 virus, European researchers report.

The study from Spain also found that preexisting antibodies against coronaviruses that cause the common cold may also protect against COVID-19.

Researchers analyzed blood samples collected from 578 health care workers at a Barcelona hospital four times betw...

Parents of kids with asthma and allergies should prepare a plan to keep them safe as schools reopen, the American College of Allergy, Asthma and Immunology (ACAAI) says.

Along with guarding against COVID-19, it's important to protect against cold, flu and other viruses that pose a risk to children with asthma. That includes wearing masks, washing hands and using hand sanitizer whenever po...

Spit and scan. That's all you have to do, and in less than an hour, you can not only find out if you have COVID-19 but what variant you have, all without leaving your home.

This is the hope and promise of a new saliva-based COVID-19 test that is currently under development.

"Several at-home tests are available for telling you whether you have COVID-19, but none of them test for vari...

I think I've had COVID-19 already, so do I really need two doses of vaccine?

It's a question millions of people around the world are asking, and now a small, new study finds that people who know they were infected with SARS-CoV-2 in the past may need only one shot of the Pfizer vaccine to gain strong immunity.

In fact, "we observed higher SARS-CoV-2 antibody levels in previously in...

A little more than two out of every three people who have mild or moderate cases of COVID-19 will go on to develop long-term symptoms.

That's the troubling takeaway from a University of Arizona Health Sciences' study launched in May 2020.

"This is a real wake-up call for anyone who has not been vaccinated," said lead researcher Melanie Bell, a professor of biostatistics in the unive...

The two HIV prevention drugs available in the United States are equally safe and effective, and the biggest difference between them is price, a new study contends.

However, a sizable minority of patients have switched from the older and cheaper "preexposure prophylaxis" (PrEP) formulation to the newer and much pricier one. In many cases that switch might not have been warranted, the resea...

Go ahead, put your credit card away: Handling cash and coins isn't likely to give you COVID-19.

European researchers treated various coins and paper money with different concentrations of SARS-CoV-2, the virus that causes COVID. A stainless steel surface was used as a control.

"Under realistic conditions, infection with SARS-CoV-2 from cash is very unlikely," said study co-leader Da...

All 11 million residents of the city of Wuhan will be tested for COVID-19 after three locally transmitted cases were reported in the city on Monday, Chinese officials said Tuesday.

The coronavirus that causes COVID-19 was first detected in Wuhan in 2019.

"To ensure that everyone in the city is safe, city-wide nucleic acid testing will be quickly launched for all people to fully scre...

Exactly what symptoms of early COVID-19 infection you suffer may depend on both your age and gender, a new study finds.

"As part of our study, we have been able to identify that the profile of symptoms due to COVID-19 differs from one group to another. This suggests that the criteria to encourage people to get tested should be personalized using individuals' information such as age. Alter...

Kids who are around people who use marijuana may be at risk for more colds and respiratory infections due to secondhand smoke, according to a new study.

In a survey of 1,500 parents and caregivers, those who regularly smoked or vaped marijuana reported more respiratory viruses among their children in the preceding year, compared to parents who did not smoke tobacco or marijuana.

"Th...

A rise in cases of a common childhood disease called respiratory syncytial virus (RSV) is unfolding just as coronavirus infections are increasing among children.

RSV is a highly contagious, flu-like illness that causes symptoms such as runny nose, coughing, sneezing and fever, and is more likely to affect children and older adults, The New York Times reported.

There's been ...

Unlocking a clue to why Black women might be more susceptible to COVID-19, a new study shows that low levels of vitamin D may increase their risk of infection.

That doesn't mean that people should rely on vitamin D supplements to protect themselves against COVID-19, however, because vaccines are the only proven protection against the disease.

For the study, researchers assessed vita...

Pfizer's coronavirus vaccine provides surprisingly robust protection against the highly infectious Delta variant of COVID-19 -- but only if you've gotten both doses.

Fresh data out of England shows that two doses of the messenger RNA (mRNA) vaccine is 88% effective in protecting people against the Delta variant, compared with about 94% effectiveness against the original strain of COVID.

The Pfizer COVID-19 vaccine will be produced for the first time in Africa by a South African firm, Pfizer announced Wednesday.

The Biovac Institute in Cape Town will produce the vaccine for distribution across Africa, which is in desperate need of more COVID-19 vaccines as cases surge, the Associated Press reported.

Biovac will receive large-batch ingredients for the vaccin...

It takes two doses of the Pfizer-BioNTech COVID-19 vaccine to "wake up" cells that play a very important role in the body's immune response, with the second dose increasing their numbers 100-fold, according to new research.

The Stanford University study may help explain why getting the second dose of mRNA vaccines, such as the Pfizer or Moderna shots, is so crucial to building a strong im...

COVID-19 vaccination rates in Canada have now beaten those in the United States.

As of Saturday, more than 49% of eligible people in Canada were fully vaccinated, and 70% had received at least one dose of vaccine, according to figures from the Our World in Data project, The New York Times reported. The rates in the United States are about 48% and 55.5%, respectively. In the Europ...

A Chinese researcher has died after catching a rare infectious disease called the Monkey B virus, Chinese Center for Disease Control and Prevention officials say.

In March, the 53-year-old veterinarian dissected two dead monkeys as part of his work in a Beijing research institute specializing in nonhuman primate breeding. He developed nausea, vomiting and fever a month later, and died May...

A case of monkeypox has been confirmed in an American who had recently traveled to Nigeria, U.S. health officials reported. Officials believe the threat of the virus spreading to others is low.

Monkeypox is a rare but potentially serious viral illness that's in the same family of viruses as smallpox, but causes a milder infection, according to the U.S. Centers for Disease Control and Prev...

How long can some COVID symptoms linger? New research suggests that more than a quarter of adults who had COVID-19 in 2020 weren't fully recovered six to eight months later.

There's growing evidence that COVID-19 can cause long-term physical and mental health problems. These cases -- called long-haul COVID -- are a growing issue for health care systems.

This study included 431 peopl...

A man in China has been hospitalized with the H5N6 strain of avian flu, which is one of several potentially dangerous strains that can infect humans.

The 55-year-old man came down with a fever and tested positive for the virus on July 6. He was hospitalized in Bazhong, a city in the province of Sichuan, according to the state-run China Global Television Network, The New York Times

People who've been fully vaccinated against COVID-19 have a much stronger immune system response against the new coronavirus than those who've previously been infected, according to a new study.

"Vaccinated individuals had the highest antibody levels, nearly three times higher than that of convalescent individuals recovering from symptomatic COVID-19," an Israeli team reported.

Wha...