How Does Bird Flu Spread in Cows? Experiment Yields Some 'Good News.' The New York TimesUS to test dairy products including ice cream and butter for H5N1 bird flu virus The TelegraphFDA says new study proves pasteurization process kills bird flu in milk after all CBS NewsFDA finds H5N1 bird flu in half of tested samples but confirms flash pasteurization kills virus CNN'Concerning' Bird Flu Study Finds Surfaces Contaminated for a Long Time Newsweek