AstraZeneca COVID-19 vaccine causes very rare blood clots, EU regulator says By Nicoletta Lanese Other COVID-19 vaccines have not been linked to such clotting disorders.
Pfizer's COVID-19 vaccine effective after 6 months and works against problem variant By Nicoletta Lanese The developers gave an update from their ongoing clinical trial.
Pfizer vaccine is 100% effective in preventing COVID-19 in children ages 12 to 15 By Yasemin Saplakoglu Pfizer and BioNTech plan to submit the clinical trial data to the FDA as soon as possible.
Pfizer and Moderna COVID-19 vaccines are 90% effective in 'real-world' study By Rachael Rettner Two doses of either vaccine were 90% effective at preventing infections, and a single dose was 80% effective.
Ex-CDC director believes COVID-19 escaped from a lab, but cites no evidence By Rachael Rettner Many experts have rejected that theory as unlikely.
Pfizer starts COVID-19 vaccine trial in young kids By Rachael Rettner Pfizer is the latest COVID-19 vaccine maker to test its shot in young children.
COVID-19 vaccines are safe and effective in pregnancy, new study shows By Nicoletta Lanese Protection also passes to the fetus through the placenta and to newborns through breast milk.
AstraZeneca COVID-19 vaccine data may be outdated, US safety board says By Yasemin Saplakoglu An independent group of medical experts in the U.S. has raised concerns that AstraZeneca may have released "outdated" data on its COVID-19 vaccine.
COVID-19 may trigger diabetes in some people By Nicoletta Lanese Scientists don't know exactly why the conditions are linked.
100 million shots in arms: U.S. meets vaccination goal early By Nicoletta Lanese About 41 million people in the U.S. have been fully vaccinated.
AstraZeneca vaccine safe, but rare risk of blood clots not ruled out, EU regulator says By Nicoletta Lanese The European Medicines Agency said the benefits of vaccination far outweigh the risks.
WHO thinks it knows where COVID-19 originated By Yasemin Saplakoglu In January, a WHO team of experts traveled to China to probe how the deadly pandemic first started.
Moderna starts COVID-19 vaccine trial in infants and young children By Nicoletta Lanese The trial includes children in the U.S. and Canada.
1st COVID-19 vaccine vial used in the US headed to museum By Rachael Rettner The historic shot was administered to New York nurse Sandra Lindsay on Dec. 14.
Man accidentally gets 2 COVID-19 shots in one day, goes into shock By Rachael Rettner There was a mix-up between patients at his rehabilitation center.
If you got the COVID-19 vaccine, here’s what the CDC says you can do By Yasemin Saplakoglu Fully vaccinated people in the U.S. can visit indoors and mask-less with other fully vaccinated people.
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.
