Medically reviewed by Amelia MacIntyre, DO While the common cold and influenza (the flu) are viral respiratory infections ...

But what kind of sickness do your symptoms point to? Here's a breakdown for COVID-19, flu and more — and why testing is so ...

Symptoms of viruses like COVID and flu overlap with each other, but there are ways you can narrow it down to get the ...

A Canadian teenager infected with bird flu — that country’s first case involving a locally acquired infection — is in ...

It can affect adults and children but tends to be more severe in adults. Flu B only affects humans and, more commonly, infects children. While it usually has mild symptoms, it can have more severe ...

The seasonal COVID-19 spike, combined with rising cases of seasonal flu and RSV, brings what has been called a “tripledemic.” ...

Cases in younger children are particularly worrying, health experts said, because walking pneumonia has historically been ...

A Canadian teenager is hospitalized in critical condition with suspected bird flu, health officials reported Tuesday.

Flu is a mild illness for some people. But for others, including older adults and those with chronic (long-lasting) health conditions, the flu can be very serious and even life-threatening.