A 13-year-old girl in Canada became so sick with H5N1, or bird flu, in late 2024 that she had to be put on a ventilator.
Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.
In light of the ongoing global spread of the H5N1 avian influenza, U.S. public health experts are reassured that current ...
Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United ...
Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...
So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...
A virologist explains that why this probably isn’t the big one — but that it’s a sign of bad things happening with the virus.