Seroprevalence of hantavirus infections in Switzerland in 2009: difficulties in determining prevalence in a country with low endemicity.

O Engler ([email protected])1, J Klingström2,3, E Aliyev4, C Niederhauser5, S Fontana5, M Strasser1, J Portmann1, J Signer1, S Bankoul6, F Frey7, C Hatz4, A Stutz4, A Tschaggelar5, M Mütsch4 1. SPIEZ LABORATORY, Federal Office for Civil Protection, Spiez, Switzerland 2. Swedish Institute for Communicable Disease Control, Solna, Sweden 3. Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden 4. Institute of Social and Preventive Medicine (ISPM), Division of Communicable Diseases, World Health Organization (WHO) Collaborating Centre for Travellers’ Health, University of Zurich, Zurich, Switzerland 5. Blood Transfusion Service, Swiss Red Cross Berne, Berne, Switzerland 6. CBRN Defence of the Swiss Armed Forces, Medical Services Directorate, Ittigen, Switzerland 7. Military Medical Service, Swiss Armed Forces, Ittigen, Switzerland