Why is China giving travelers anal tests for COVID-19? By Rachael Rettner Travelers to some Chinese cities have been required to take anal swab tests for COVID-19.
Orangutans and bonobos at US zoo get experimental COVID-19 vaccine By Rachael Rettner Four orangutans and five bonobos have been vaccinated.
Why type A blood may increase COVID-19 risk By Nicoletta Lanese The study is an early first step to understanding the link between blood type and COVID-19.
Gwyneth Paltrow's wacky COVID-19 treatments have no medical justification By Ashley P. Taylor Experts said there was no evidence that any of Paltrow's remedies could help with prolonged symptoms of COVID-19.
FDA clears Johnson & Johnson COVID-19 vaccine for emergency use By Nicoletta Lanese The U.S. Food and Drug Administration (FDA) authorized Johnson & Johnson's COVID-19 vaccine for emergency use on Saturday (Feb. 27), making it the third shot cleared for use in the country.
New coronavirus variant in NYC has vaccine-evading mutation By Rachael Rettner It has a mutation that may help the coronavirus partially evade COVID-19 vaccines.
'Homegrown' California coronavirus variant is more contagious and possibly deadlier By Rachael Rettner Lab studies found that the variant was 40% better at infecting human cells compared with earlier strains.
Woman contracts COVID-19 from lung transplant in a first By Rachael Rettner A lifesaving operation turned tragic when a Michigan woman contracted COVID-19 from her double lung transplant last year and died soon after.
Lengthy clinical trials to test vaccines modified for variants won't be necessary, FDA says By Yasemin Saplakoglu The testing process for modified vaccines will likely be similar to that of the annual flu shot, FDA says.
Teachers may play a central role in spreading COVID-19 in schools, CDC says By Rachael Rettner The findings highlight "the importance of preventing infections among educators in particular," the authors said.
Another new coronavirus variant now detected in 13 countries By Ashley P. Taylor As of Feb. 17, there had been 46 cases of the new variant confirmed in the U.K.
30% of people with COVID-19 experience symptoms up to 9 months later By Rachael Rettner Most participants in the study initially had mild cases of COVID-19.
Still no evidence of COVID-19 transmission from food, FDA says By Nicoletta Lanese The FDA statement pours cold water on a theory that the novel coronavirus emerged outside China and was brought in on imported frozen food.
Entire Brazilian city will be vaccinated against COVID-19 in giant experiment By Yasemin Saplakoglu Scientists will vaccinate all the adults in a single city to see whether a COVID-19 vaccine will reduce cases.
At least 20 million years of life have been lost to COVID-19, study suggests By Rachael Rettner On average, each COVID-19 death resulted in 16 years of life lost.
Severe COVID-19 may damage the eyes, small study hints By Rachael Rettner The researchers saw "nodules" at the back of patients' eyes, which can be signs of inflammation or direct damage to the eye.
Hundreds of animal species could harbor novel coronaviruses By Nicoletta Lanese A new model predicts which mammals might be likely hosts for new coronaviruses.
Who should get the Johnson & Johnson vaccine over the mRNA vaccines? By Jocelyn Solis-Moreira, MS Each vaccine has its pros and cons, but all work extremely well.
Prior infection with common cold viruses won't protect against COVID-19 By Yasemin Saplakoglu For months, scientists have wondered whether past exposure to seasonal coronaviruses that cause common colds might prevent people from getting a severe case COVID-19.
CDC issues new guidelines for safely reopening schools By Rachael Rettner The recommendations provide a "long-needed road map" for reopening schools, officials said.
