AdvertisementResearch Moratoriums And Recipes For Superbugs: Bird Flu In 2012December 31, 2012Nell GreenfieldboycefacebookEmailResearchers at the U.S. Geological Survey National Wildlife Health Center in Madison, Wis., use eggs to see if the Asian strain of the H5N1 bird flu virus has entered the U.S. in this photo from 2006. (AP)