In severe bird flu cases, the virus can mutate as it lingers in the body
A 13-year-old girl in British Columbia who was hospitalized with bird flu for several weeks late last year harbored a mutated ...
Bird flu could merge with seasonal flu to make mutated virus that could spread among humans, CDC warns
For example, if a human gets infected with a bird flu and also carries a human influenza A virus, these two viruses can ...