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Macroscopic changes in the intestines of enterohaemorrhagic Escherichia coli (EHEC)-infected mice. Whole intestines of control, non-Shiga toxin 2 (Stx2)-producing EHEC (605/03) and Stx2-producing EHEC (125/99) infected mice at 48 and 72 h. One representative animal of each group is shown. Pictures were taken with a Nikon Coolpix 4500 digital camera (Tokyo, Japan).
