When people get the shots, the body’s immune system can accidentally confuse a normal protein from adenovirus - which is used to ferry coronavirus DNA into our cells, leading to the creation of ...

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

WASHINGTON - It was anxiety — and not a problem with the shots — that caused fainting, dizziness and other short-term reactions in dozens of people at coronavirus vaccine clinics in five states, U.S.

North Carolina health officials said on Thursday that they stopped administering Johnson & Johnson doses at a mass vaccination site in Raleigh and at clinics in Hillsborough and Chapel Hill after at ...

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.