Bird flu brought a B.C. teen close to death. Here's what we know about H5N1
The bird flu virus that brought a Canadian teen to the “brink of death” may have mutated while inside her body to become more ...
As 1st bird flu death reported in US, what could happen with virus in 2025?
The CDC says the risk of bird flu to the general public is low, but public health experts say they are worried the virus could mutate and become more transmissible.