A rare but serious clotting disorder linked to certain COVID-19 vaccines and natural adenovirus infections has puzzled scientists for years.

Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.

Rare but dangerous blood clotting associated with that vaccine as well as AstraZeneca’s had a genetic cause, according to a new paper.

Scientists say they have identified a mutated autoantibody gene as the mechanism behind rare but serious abnormal blood ...

Walensky is a professor at Harvard Medical School and served as the 19th director of the Centers for Disease Control and Prevention. Once clinical trials showed that Covid-19 vaccines were safe and ...

Labor Department Officials Frustrated With White House Over COVID-19 Vaccine and Testing Mandate The FDA Authorized a Booster ...

A vaccine with University of Washington roots that fights a suite of coronaviruses including COVID-19 and related, deadly ...

You can’t blame this one on the stork. After a brief baby bump early in the COVID-19 pandemic, birth rates in the US and ...

Getting an updated coronavirus vaccine can be particularly challenging this year. The Food and Drug Administration approved those shots for people who are 65 and older or have underlying conditions ...

Rare but deadly blood clots tied to J&J and AstraZeneca's vaccines were caused by an autoimmune reaction that some people are predisposed to, researchers found.

Since the start of the coronavirus pandemic, claims that vaccines can cause severe disease have been widespread on social ...