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.
Wuhan lab workers were sick in November 2019, intelligence suggests By Stephanie Pappas A new report finds that three Wuhan Institute of Virology staffers fell ill in November 2019, but it's not clear with what or how trustworthy the intelligence is.
Universal coronavirus vaccine is highly effective in monkeys By Yasemin Saplakoglu Researchers developed a "pan-coronavirus" vaccine, designed to protect against many different strains of coronaviruses known to infect humans and bats.
US investigating handful of myocarditis cases following COVID-19 vaccination By Tia Ghose There may not be any link, as the condition is somewhat common.
New coronavirus found, and it jumped from dogs to people By Rachael Rettner The researchers detected the new virus in a sample obtained from a child diagnosed with pneumonia in 2018.
'Black fungus' treatment runs short in India as new cases of infection emerge By Nicoletta Lanese The Indian government is working to increase the nation's supply of amphotericin B.
Zombie mink slaughtered due to coronavirus are 'rising' from mass graves By Nicoletta Lanese Gases excreted by the decomposing mink had pushed the carcasses up through the ground.
Prominent scientists call for more investigation into origins of coronavirus By Rachael Rettner The origins of SARS-CoV-2 have been hotly debated.
This chain reaction could explain rare blood clots linked to some COVID-19 vaccines By Nicoletta Lanese While plausible, this hypothesis still needs to be confirmed.
Woman gets 6 doses of COVID-19 vaccine at once By Rachael Rettner She did not experience any serious side effects from the vaccine overdose.
Medieval shrine gets stone carving of face wearing a COVID-19 mask By Mindy Weisberger Visitors to a newly-restored shrine in the St. Albans Cathedral will be greeted by a carved stone face wearing a protective mask.
FDA okays emergency use of Pfizer's COVID-19 vaccine for young teens By Yasemin Saplakoglu On Monday, the Food and Drug Administration extended emergency approval for the Pfizer-BioNTech COVID-19 vaccine to include adolescents.
