Bird flu is a disease caused by avian influenza A viruses, according to the CDC. The virus mostly spreads between birds and dairy cows, but there have been 67 human cases of bird flu nationwide and ...
SANFRANCISCO (KGO) -- The CDC has confirmed the positive birdflu case in a child in SanFrancisco. City health officials first reported on a presumptive case in a child on Jan. 10 and ...