Detection of Usutu virus infection in a healthy blood donor from south-west Germany, 2012 Allering, L and Jöst, H and Emmerich, P and Günther, S and Lattwein, E and Schmidt, M and Seifried, E and Sambri, V and Hourfar, K and Schmidt-Chanasit, J, Eurosurveillance, 17, 20341 (2012), https://doi.org/10.2807/ese.17.50.20341-en