A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
E. coli O157 bacteria. Coloured transmission electron micrograph (TEM) of a section through Escherichia coli O157 bacteria, a cause of food- borne illness. E. coli are Gram-negative intestinal bacteria (enterobacteria). Infection with the O157 strain can result in bloody diarrhoea and kidney failure, particularly in the elderly and very young. E. coli O157 occurs in the intestines of cattle and can spread to contaminate beef and milk. This may be prevented by cooking meat thoroughly and through the pasteurisation of milk. Magnification: x5800 at 6x7cm size.
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