Should we, as pet chicken owners be concerned with this? CDC Director Says Bird-Flu Fatigue Is Growing Concern KUALA LUMPUR, Malaysia -- A top U.S. health official said the threat of a bird-flu pandemic remains high. And while the world has made great strides to prepare, they're not enough. U.S. Centers for Disease Control and Prevention director Julie Gerberding said bird-flu fatigue among countries and the public is a growing concern. Scientists have identified the H5N1 bird-flu virus as a potential candidate that could mutate into a form that spreads easily among people. Doctor Gerberding told a news conference in Malaysia Saturday that when it comes to news, people have very short attention spans. She said it's up to governments and leaders "to be very strategic" in dealing with problems like flu in order to "fill in for the tendency toward complacency."