A top official at the Food and Drug Administration recently overruled government scientists on the availability of two ...

As a new variant that causes 'razor blade throat' spreads, the FDA updates vaccine warnings to include information on heart ...

The U.S. Food and Drug Administration is now requiring two common COVID-19 vaccines to update their warning labels to include ...

According to the CDC, though rare, these side effects most often affect young adult males within 7 days of their second mRNA COVID-19 vaccine dose. Currently approved mRNA vaccines include Moderna ...

In the case of the two mRNA COVID-19 vaccines, well over 90% of people immunized developed the protective adaptive immune response while fewer than 50% developed any side effects, and most were mild.

A new study involving millions of participants has found most side effects from mRNA COVID-19 vaccines were mild and faded substantially after one day. The findings, published Monday in The Lancet ...

Most additional doses of mRNA COVID-19 vaccine administered roughly six months after the primary series resulted in mild to moderate side effects, according to an analysis from the Centers for ...

Erin Kissane, a co-founder of the COVID Tracking Project, rolled up her sleeve for the Novavax Covid-19 vaccine in mid-October soon after it was finally recommended in the United States. Like many ...

Here's why: The COVID-19 mRNA vaccines tell the body to make the coronavirus "spike" protein, ... Still, don't fret if you got the shot and had no side effects; the vaccine is still working.

Most often, Chambers said, COVID vaccine side effects occur within 24 to 48 hours after the shot. Delayed reactions like So’s aren’t typical, ... If you have a severe or immediate allergic reaction ...

That may leave you wondering: What are the COVID-19 vaccine side effects I should be prepared for? ... a.k.a. mRNA vaccines. They require two doses, administered two weeks apart.