Man died with bird flu; US officials remain focused on another form of it

FILE - Chickens stand in their cages at a farm, Nov. 16, 2009, near Stuart, Iowa. FILE - Cows stand in the milking parlor of a dairy farm in New Vienna, Iowa, on July 24, 2023.

The mysterious death of a man in Mexico who had one kind of bird flu is unrelated to outbreaks of a different type at U.S. dairy farms, experts say.