Large and ongoing outbreak of haemolytic uraemic syndrome, Germany, May 2011 Frank, C and Faber, M S and Askar, M and Bernard, H and Fruth, A and Gilsdorf, A and Höhle, M and Karch, H and Krause, G and Prager, R and Spode, A and Stark, K and Werber, D and HUS investigation team, Eurosurveillance, 16, 19878 (2011), https://doi.org/10.2807/ese.16.21.19878-en