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Salmonella enteritidis bacterium

Salmonella. Coloured transmission electronmicrograph of a Salmonella enteritidis bacterium. This Gram-negative rod-shaped bacillusis a cause of food poisoning (Salmonellosis) in humans. Note the presence of many flagellaeused for motility. Salmonella enteritidis produces enterotoxins which act on the smallintestine. Infection occurs when numbers of thesebacteria are ingested through the medium ofcontaminated food, particularly meat, milk andchicken eggs. Typical Salmonella foodpoisoning occurs with symptoms including vomiting, nausea, abdominal pain and diarrhoea. Theinfection is usually controllable and rarelyfatal. Magnification: x13, 100 6x4.5cm size.. Stunning Photo Gifts From Science Photo Library