Avian influenza H5N1 infection in humans has spread to seven U.S. states, growing from 46 cases last week to 52 cases this week.

With 46 U.S. cases and alarming signs of the virus crossing species, experts warn of unpredictable risks if human-to-human ...

It's not clear how the British Columbia teenager picked up the virus, which has been detected recently in wild birds and ...

Reports this week of a teen in British Columbia who tested positive for H5 avian influenza has renewed attention on the virus ...

Oregon confirms its first human bird flu case, the latest in dozens of cases in the U.S. this year. Experts discuss the ...

Amid an ongoing outbreak of bird flu in American dairy herds and poultry flocks, Canadian officials have announced ...

The Oregon Health Authority said there's no evidence of person-to-person transmission and the risk to the public is low.

So far, there have been 52 confirmed cases of avian influenza, commonly referred to as the "bird flu," in humans in 2024. Two of the infected patients have been in Missouri.

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how ...

The genetic sequence of the H5N1 bird flu virus that infected a teenager in British Columbia shows that the virus had ...