Consultations and Workshops 291,169 PREVENTION Prevention and Control of Enterohaemorrhagic Escherichia coli (EHEC) Infections : report of a WHO Consultation Geneva, Switzerland 29 April-1 May 1997 / World Health Organization. - Geneva : Food Safety Unit Programme of Food Safety and Food Aid WHO, 1997. - [4], 43 s. ; 30 cm. - (Consultations and Workshops)