AMI IMAGES / SCIENCE PHOTO LIBRARY AMI IMAGES / SCIENCE PHOTO LIBRARY
Salmonella typhimurium bacteria. Coloured scanning electron micrograph (SEM) of Salmonella typhimurium bacteria (rod-shaped) invading cultured human cells. This bacterium, also known as Salmonella enterica serovar typhimurium, is a Gram-negative, rod-shaped cell. Salmonella is a major cause of food poisoning (salmonellosis) in humans, most commonly caught from infected pork, poultry and eggs. Symptoms include fever, chills, severe diarrhoea and vomiting.
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