*10.10. Shiga-Toxin Producing E. coli (STEC)*

As water is commonly contaminated with the faeces of agricultural animals, ways of reducing *E. coli* O157 excretion by cattle have been examined [166]. Further work on preventing haemolytic uremic syndrome found that vaccine use on animals reduced carriage, but the study emphasised the importance of public health measures [167]. Patients were consistently found to have exposure to rodents, behavioural and sanitation related risk factors.
