51.6 MB (3.5 MB compressed)
3688 x 4888 pixels
31.2 x 41.4 cm ⏐ 12.3 x 16.3 in (300dpi)
A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
False-colour transmission electron micrograph of a colony of bacteria, Salmonella enteritidis, cause of a severe outbreak of food poisoning in Britain in 1988. The outbreak was traced to chicken eggs containing the bacteria. Chickens are associated with Salmonella, but until recently it has been the less virulent species of S. typhimurium, which lives in the gut of the chicken & is not found in the reproductory system. S. enteritidis is thought to have entered Britain in imported chicken feed. Its spread has been aided by the practice among feed processors of adding chicken carcasses to chicken feed. Magnification: x4700 at 6x4.5cm size, x3200 at 35mm size.
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