Investigation of a large outbreak of Clostridium difficile PCR-ribotype 027 infections in northern France, 2006-2007 and associated clusters in 2008-2009 Birgand, G and Blanckaert, K and Carbonne, A and Coignard, B and Barbut, F and Eckert, C and Grandbastien, B and Kadi, Z and Astagneau, P, Eurosurveillance, 15, 19597 (2010), https://doi.org/10.2807/ese.15.25.19597-en