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

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 ...

LIBERTYVILLE, Ill. -- Advocate Aurora Health, a health care system in Wisconsin and Illinois, said it has resumed COVID-19 vaccinations after temporarily pausing them to investigate "experienced ...

Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.

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.

The U.S Centers for Disease Control and Prevention is issuing new allergy guidelines for the COVID-19 vaccine. The recommendations were published on the CDC's website Saturday, CNN reported. If you ...

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.

The beginning of 2021 was a sign of marked hope for a great many across the globe. After an interminable year of mass casualties, lockdowns, and fear, COVID-19 vaccines were exiting clinical trials ...

The poll also highlights a group at growing risk: older adults who have never received a COVID vaccine. One in five adults ...