USDA Starts Highly Pathogenic Avian Influenza Vaccine Trials

The U.S. Department of Agriculture (USDA) is testing the efficacy of a handful of vaccines against the current strain of highly pathogenic avian influenza (HPAI) hoping to stem the spread of the largest outbreak of bird flu in the nation’s history. The virus has so far been reported in all but one state, Hawaii, and has resulted in the deaths of nearly 60 million poultry.