Institution: | 1.Clinical Virology,Bernhard-Nocht Institute for Tropical Medicine,Hamburg,Germany;2.Staatliches Veterin?runtersuchungsamt,Arnsberg,Germany;3.Bundeswehr Institute of Microbiology,Munich,Germany;4.Friedrich-L?ffler-Institut,Wusterhausen,Germany;5.University of Bonn Medical Center,Bonn,Germany |