Immunity against seasonal H1N1 flu reduces bird flu severity in ferrets, study suggests

Pre-existing immunity against seasonal H1N1 flu might help explain why most reported human cases of H5N1 bird flu in the U.S. have not resulted in lethal outcomes, suggests a new study by University of Pittsburgh School of Medicine and Emory University researchers. The report was published last week in Emerging Infectious Diseases. In a ferret […]