China Has Withheld Samples of a Dangerous Flu Virus

Despite an international agreement, U.S. health authorities still have not received H7N9 avian flu specimens from their Chinese counterparts. EMILY BAUMGAERTNER https://ift.tt/2No1CRK https://ift.tt/2LwO9Ff The New York Times Health Avian Influenza, Vaccination and Immunization, International Trade and World Market, Epidemics August 27, 2018 at 12:00AM