The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is ...

The case of the Canadian teen and the death of a Louisiana man are stark reminders of bird flu’s capacity to ignite serious ...

A child ill with fever and conjunctivitis in San Francisco tested positive for bird flu but had no known source of ...

The US Centers for Disease Control and Prevention is urging hospitals to accelerate advanced testing of people they suspect ...

At least 15 states have very high levels of influenza, according to the Centers for Disease Control and Prevention.

It is the first wild bird to test positive in Northern Ireland since September 2023.

Symptoms usually come on suddenly, according to the CDC, and can include fevers above 100.4 degrees F, dry cough, sore throat ...

The U.S. has reported its first death due to bird flu, aka H5N1. How deadly is H5N1? Experts discuss bird flu fatality rate amid ongoing outbreak.

Flu has surged to high levels across the US, straining hospitals. Experts discuss 2024-25 flu season trends, symptoms to ...

Flu season is here in California, but other illnesses are in full swing in the Golden State. Here are the symptoms and how ...

Influenza is high across the country, and Indiana is among the states affected. Here's what we know about how long flu lasts, ...