Of all the pathogens that have plagued humanity, few are as notorious and persistent as influenza. Its Houdini-like ability to regularly slip the shackles of vaccine- or infection-induced immunity, ...

It's the time of the year for holiday cheer, but also the season for coughing, sneezing and everything in between. Norovirus is a highly contagious virus that causes vomiting and diarrhea, according ...

Here’s what to know about the dominant version of the virus that’s circulating now. By Dani Blum The flu constantly morphs and mutates. Often, it surprises researchers a little. This year, the virus ...

A suburban Chicago school district transitioned to remote learning due to illnesses and a hospital issued a warning after "dozens of cases" of a highly contagious and hard to kill stomach virus were ...

'Tis the season of vigorous handwashing and using copious amounts of hand sanitizer as Americans try to avoid getting sick before the holidays. Health agencies like the Centers for Disease Control and ...

Researchers discovered a hidden molecular “switch” that herpes viruses rely on to invade cells. By combining AI, simulations, and lab experiments, they identified and altered a single amino acid that ...

Doctors and scientists say this year's influenza season could be tougher than usual. A new version of the flu virus, called H3N2, is spreading quickly. At the same time, fewer people are getting flu ...

It's the holiday season, which means it's the most common time of year for norovirus to spread. Here's what you need to know about this winter stomach bug. Silver Cross Hospital in Will County ...

At least 14 states and Washington, DC, are reporting high or very high flu activity. The dominant flu strain, a version of influenza A (H3N2) called subclade K, has multiple mutations that make it ...

Doctors across the country say flu season has arrived earlier than usual and is hitting people — mainly kids, so far — especially hard. “I don’t think I ever remember seeing it this severe, this soon, ...