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

When people get the shots, the body’s immune system can accidentally confuse a normal protein from adenovirus - which is used ...

Find out how different vaccines for the coronavirus cause your body to create antibodies that fight the virus.

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

Moderna reported falling fourth-quarter sales as Covid-19 vaccine demand continued to drop, but continues to target 10% ...

Researchers identify genetic mutation in small group of people who developed the serious disorder after receiving the AstraZeneca or Johnson & Johnson vaccine.

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

One panelist accused the F.D.A. of withholding data on potential harms. The advisers also are reviewing research on vaccines ...

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 ...

Researchers pinpoint the precise genetic & molecular mechanism behind rare COVID vaccine blood clots (VITT), revealing how ...

In a winter marked by flu outbreaks, the persistence of Covid-19, and surges of measles cases across the United States, an ...

HealthDay News — More than four in 10 people older than 50 years (42 percent) have not gotten either a flu or COVID-19 ...