Affiliation: | aInfection Biology Unit, German Primate Center, Göttingen, Germany;bDivision of Influenza Viruses and other Respiratory Viruses, Robert Koch Institute, Berlin, Germany;cInstitute of Virology, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Munich, Germany;dInstitute of Medical Virology and Epidemiology of Viral Diseases, University Clinic Tübingen, Tübingen, Germany |