CHAPEL HILL, N.C. -- As the US Food and Drug Administration considers whether to authorize emergency use of Pfizer and BioNTech's COVID-19 vaccine, medical experts are paying close attention to ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com. Most people who reported a reaction to a COVID-19 ...

PHILADELPHIA (WPVI) -- Local medical experts who spend their careers researching viruses and vaccines say we should expect a small number of people to have allergic reactions to the vaccine, but only ...

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 ...

One of the many troubling aspects of Covid-19, which continues to surge, is that it can cause your immune system to mistakenly attack your body. This is what’s known as an autoimmune response. And it ...

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.

Simultaneous administration of a COVID-19 mRNA booster shot and the seasonal influenza vaccine slightly increased the risk of systemic reactions during the following week compared with a booster shot ...