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

Five years ago, COVID was all we could think about. Today, we’d rather forget about lockdowns, testing queues and social distancing. But the virus that sparked the pandemic, SARS-CoV-2, is still ...

COVID Had a Startling Impact on Our Brains, New Research Says—Here's What a Neurologist Wants You to Do originally appeared on Parade. The COVID-19 pandemic (which for many immunocompromised people is ...

"Tim's case was about as severe as they come," says his doctor about this diagnosis that's been rising among younger crowds.

Add Yahoo as a preferred source to see more of our stories on Google. Flu season is here. The summer wave of the coronavirus has receded, but the winter uptick is likely around the corner. Shots are ...

A new analysis adds to the research about the link between viral infections and heart disease. By Nina Agrawal A number of viral infections, including flu, Covid-19 and shingles, are linked to an ...

Some cancer cells don't die; they go quiet, like seeds lying dormant in the soil. These "sleeper cells," scattered throughout the body, can stay inactive for years. But when the body faces a ...

The upcoming fall and winter months are about to bring the usual crop of respiratory illnesses—influenza, respiratory syncytial virus (RSV) and, of course, COVID. But this will be the first time since ...

(NEXSTAR) – It’s that time of year again. The coughing, sneezing and sniffling is all around us, as both influenza and COVID-19 start to spread. When you start to feel sick, it can be hard to tell ...

The U.S. Food and Drug Administration approved 2025-26 COVID-19 vaccines for anyone age 65 and older and any person 6 months and older who has at least one underlying health condition that increases ...