Gastroenteritis outbreaks in elderly homes in the east of France during winter 2009/10: aetiology research for a series of 37 outbreaks Thouillot, F and Delhostal, C and Edel, C and Bettinger, A and Pothier, P and Ambert-Balay, K and Meffre, C and Alsibai, S, Eurosurveillance, 17, 20103 (2012), https://doi.org/10.2807/ese.17.09.20103-en