Researchers have identified nine mutations in a bird flu strain from a person in Texas. Bad news: this strain is more capable of causing disease and replicates better in the brain. Good news: approved ...

A harbor seal and a Chilean flamingo died from the bird flu this month at the Lincoln Park Zoo in Chicago, officials said.

Lincoln Park Zoo said the specific source of the exposure of the animals to bird flu, or H5N1 virus, is not known.