Why do some people develop severe flu symptoms? A study points the finger at an unsung portion of the antibodies our immune systems generate to fend off invading pathogens.

Experts and health authorities say that while the risk of human infection with the H5N1 strain of the avian influenza remains ...

Health officials were struggling to answer a broader and potentially worrisome question: how the infection occurred.

Did you know that the flu, and even COVID, can cause pink eye? Here's how to treat it (and avoid spreading it to others).

Flu season impacts everyone, including doctors. When physicians themselves get struck down, here are the tricks they use to ...

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

It’s possible to catch a cold or get the flu at any time of year. But the chances of becoming sick increase during cold and ...

Bird flu (H5N1) has been spreading across the country, among both animals and people, since April of this year. As the ...

Phenylephrine is included in many cold and flu products, but a scientific panel last year found that it doesn't really do its ...

Discover the similarities between Covid, flu, and the common cold, and learn how to diagnose each one accurately with testing ...

A new study revealed more farmworkers had signs of infection, even though they reportedly did not display symptoms of illness.

Federal health officials on Thursday called for more testing of employees on farms with bird flu after a new study showed ...