A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
Transmission electron micrograph of Salmonella enteritidis, a rod-shaped, flagellated bacterium which causes food poisoning. S. enteritidis was the cause of a severe outbreak of food poisoning which occurred in Britain in 1988 & was traced to chicken eggs. Chickens have long been associated with Salmonella food poisoning, but until recently the species responsible has been the less virulent S. typhimurium, which lives in the gut of the chicken and is not found in its reproductive system. The spread of S. enteritidis is thought to have been aided by the practice among feed processors of adding chicken carcasses to chicken feed. Magnification: x32,000 at 8x10 inch size.
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