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

Wastewater in several Californian cities, including San Francisco and Los Angeles, recently tested positive for bird flu. But ...

Updated vaccines, proper hygiene and staying home when you're sick can help prevent the spread of respiratory illnesses this ...

A Canadian teenager is currently in critical condition after contracting a suspected case of H5N1 bird flu, a British ...

There have been dozens of confirmed human cases of bird flu in the U.S. this year. Experts discuss the symptoms, risks and ...

Initial testing had indicated the teenager's infection was from bird flu and was confirmed in further testing, the Public ...

A teenager in British Columbia was hospitalized in critical condition with the disease, and officials were working to find ...

A teen in Canada may be the first person to catch an H5 bird flu virus within the country. Health officials are now working ...

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 ...

If you've had more than one friend cancel plans due to a nasty "stomach flu" or "stomach bug," they might actually have ...

A variant of the Avian Flu has been confirmed in Hawaii. Health officials said it’s the first one in the state, and want to ...

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