FDA to announce new warning for J&J vaccine after cases of rare autoimmune disorder By Yasemin Saplakoglu Around 100 cases of Guillain-Barré have been reported in people who received the J&J vaccine.
Woman develops rare 'coinfection' with two coronavirus variants By Rachael Rettner The infection was fatal.
Coronavirus variants: Here's how the SARS-CoV-2 mutants stack up By Live Science Staff Here's a look at the science behind SARS-CoV-2 variants and which coronavirus mutants are the most concerning in different areas.
Cats and dogs get COVID-19 from their owners at extremely high rates By Rachael Rettner People who test positive for the coronavirus should steer clear of their pets.
Why health officials are watching new 'lambda' coronavirus variant By Rachael Rettner So far, lambda has been detected in 29 countries, with high levels of spread in South American countries.
Johnson & Johnson says COVID-19 vaccine protects against delta variant By Yasemin Saplakoglu The Johnson & Johnson COVID-19 vaccine is highly effective against the highly transmissible delta variant, the company announced.
Pfizer and Moderna vaccines may provide years of protection from COVID-19 By Yasemin Saplakoglu The mRNA vaccines will likely provide protection against the coronavirus for years if it doesn't evolve significantly, a small new study suggests.
Countries hosting dangerous pathogen labs lack biosecurity By Stephanie Pappas Most countries that host laboratories dealing with the deadliest pathogens score low on measures of biosecurity and biosafety.
Fauci says delta variant is the 'greatest threat' in our fight against COVID-19. Why? By Yasemin Saplakoglu A highly transmissible SARS-CoV-2 variant called "delta" has spread to nearly 100 countries around the world, including to the U.S., where it's likely to soon become the dominant variant.
Scientist recovers coronavirus gene sequences secretly deleted last year in Wuhan By Jeanna Bryner A researcher in Seattle has dug up deleted files from Google Cloud that reveal 13 partial genetic sequences for some of the earliest cases of COVID-19 in Wuhan.
COVID-19 vaccine benefits 'clearly' outweigh risks of rare myocarditis in teens, CDC says By Rachael Rettner The CDC continues to recommend COVID-19 vaccination for everyone ages 12 and older.
COVID-19 was spreading in the US by December 2019, mounting evidence suggests By Rachael Rettner The new findings suggest the virus may have been circulating in Illinois as early as Dec. 24, 2019.
Novavax's COVID-19 shots are 90% effective, company reports By Nicoletta Lanese The shots are 100% effective against moderate and severe infections.
How much does all the SARS-CoV-2 in the world weigh? By Yasemin Saplakoglu If all the circulating SARS-CoV-2 particles were gathered together into one place, they would weigh somewhere between the weight of an apple and that of a young toddler.
Is the COVID-19 vaccine causing rare myocarditis cases? By Rachael Rettner Researchers in Israel say they've found a possible link between the Pfizer-BioNTech COVID-19 vaccine and cases of heart inflammation called myocarditis in young men.
Coronavirus variants to be named using Greek letters, WHO says By Nicoletta Lanese The new names do not replace the variants' scientific names, but serve as an easy alternative.
COVID-19 can infiltrate insulin-producing cells in the pancreas, study suggests By Nicoletta Lanese The finding still needs to be validated with further research.
ER visits declined during pandemic. But that wasn't a bad thing, study suggests. By Rachael Rettner The new findings suggest that people may have been overusing the ER before the pandemic.
Low testosterone in men linked to more severe COVID-19 By Yasemin Saplakoglu Men with low testosterone levels may be more likely to have severe COVID-19, a small new study suggests.
Most kids with inflammatory COVID-19 syndrome are recovered by 6 months By Rachael Rettner The study is the first to follow children with the syndrome, called MIS-C, for as long as six months.
