Bacteria and neutrophil cell, SEM

Bacteria and neutrophil cell, SEM

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Caption: Bacteria and neutrophil cell. Coloured scanning electron micrograph (SEM) of Shigella sp. bacteria (yellow) on the surface of a neutrophil white blood cell. Shigella sp. are Gram-negative rod- shaped bacteria. They infect the large intestine and cause dysentery, which can vary in severity from a mild attack of diarrhoea to an acute infection. Dysentery is spread by flies, direct contact and faeces-contaminated water. Treatment is with sulphonamide drugs. Neutrophils are the most abundant white blood cell. They are very motile, entering tissues to engulf (phagocytose) and destroy invading micro-organisms.

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Keywords: antigen, bacilli, bacillus, bacterial, bacteriology, bacterium, biological, biology, cell, cells, coloured, defence, destroying, extracellular trap, false-colour, false-coloured, gram-negative, immune response, immune system, immunology, intestinal, medical, medicine, microbiological, microbiology, net, neutrophil, pathogen, pathogenic, phagocytic, scanning electron micrograph, scanning electron microscope, sem, shigella sp., trapping, white blood cell

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