(Refiling to fix typographical error in last paragraph to make it "of" instead of "pf")By Bo EricksonWASHINGTON (Reuters) -The U.S. Congress early on Saturday passed a measure to boost Social

Public concern over bird flu ratcheted up this week as the H5N1 virus continued its sweep through the nation's dairy and poultry farms and the first American was hospitalized with a severe infection.