The national health executive attributes the latest spike in cases to a "drifted" variant from the H3N2 family, reports the ...

She considers herself lucky. She happened to find a doctor who immediately did a biopsy and sent her sample to a lab that likely didn’t have much else to investigate during the pandemic. Whoever her ...

A number of diseases tend to peak in the winter, thanks to indoor gatherings that help germs spread. The list includes not ...

The symptoms of COVID-19 have changed over time. Here, infectious disease doctors share what many people are experiencing ...

For millions suffering from long COVID, their persistent breathlessness, brain fog and fatigue remain a maddening mystery, but a group of leading microbiologists think they may have cracked the case.

When you start to feel sick, it can be hard to tell which respiratory virus you’ve been hit with. The flu and COVID share a ...

A new study identifies a mechanism for how COVID vaccines may, in infrequent cases, drive heart inflammation, a condition ...

For millions suffering from long COVID, their persistent breathlessness, brain fog and fatigue remain a maddening mystery, ...

So far, just 36 percent of U.S. children have been vaccinated—down 23 percent from a half-decade earlier, likely due to ...

It's once again the time of year for an uptick in illnesses such as colds, the flu, COVID and RSV. Here are the signs and ...