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

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.

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

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

Bird flu H5N1 has infected dozens of people in the U.S. this year. Could it be the next pandemic? Experts explain the threat ...

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

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

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

Almost from the beginning of the spread of H5N1 bird flu among farms and ranches in the U.S. earlier this year, experts and ...