Affiliation: | aFriedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Molecular Virology and Cell Biology, Greifswald-Insel Riems, Germany;bInstitut Pasteur, Unité de Virologie Structurale, Département de Virologie and CNRS Unité Mixte de Recherches 3569, Paris, France |