Epidemiological and microbiological investigation of a large outbreak of monophasic Salmonella Typhimurium 4,5,12:i:- in schools associated with imported beef in Poitiers, France, October 2010 Raguenaud, M E and Le Hello, S and Salah, S and Weill, F X and Brisabois, A and Delmas, G and Germonneau, P, Eurosurveillance, 17, 20289 (2012), https://doi.org/10.2807/ese.17.40.20289-en