Officials Investigate How Bird Flu Contaminated Vaccines in Europe

person inside laboratory

Helen Branswell Officials are trying to get to the bottom of how vaccine manufacturer Baxter International Inc. made “experimental virus material” based on a human flu strain but contaminated with the H5N1 avian flu virus and then distributed it to an Austrian company. … Accidental release of a mixture of live H5N1 and H3N2 viruses […]