Bird Flu > Bird Flu News > Flu spreads in U.S., world, winds down in Mexico (Reuters via Yahoo! News)

Flu spreads in U.S., world, winds down in Mexico (Reuters via Yahoo! News)
U.S. health officials predicted worsening outbreaks of the new H1N1 flu on Thursday, and a top global health official predicted up to a third of the world's population could eventually become infected even as Mexican officials said the worst was over.