Haemolytic Streptococcus and E coli, Coloured scanning electron micrograph (SEM). Streptococci (yellow) are Gram positive cocci that grow in chains. G

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Haemolytic Streptococcus and E coli, Coloured scanning electron micrograph (SEM). Streptococci (yellow) are Gram positive cocci that grow in chains. Group A and B streptococci are two groups of beta haemolytic streptococci. Group A streptococci (GAS) are a cause of many infectious diseases both invasive and non invasive. Over one third of invasive GAS diseases are skin and soft tissue infections, the most severe being necrotizing fasciitis. Group B streptococci (GBS) are the leading cause of neonatal meningitis in the UK, accounting for 42-48% of positive cases. Escherichia coli () (green) is a Gram-negative, anaerobic, rod-shaped bacterium of the genus Escherichia commonly found in the lower intestine. Virulent strains of E. coli can cause gastroenteritis, urinary tract infections, and neonatal meningitis. Magnification: x 4000 when printed at 10 centimetres wide.

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Photo credit: © STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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Keywords: ., bacteria, bacterial, bacterium, beta, chain, coli, disease, electron, enteric, escherichia, fasciitis, gas, gbs., gram-negative, gram-positive, group, haemolytic, infection, infectious, intestinal, meningitis, microbe, micrograph, microorganism, microscope, microscopic, necrotizing, pathogen, pathogenic, rod-shaped, scanning, sem, skin, soft, spherical, steptoccoci, streptococci, streptococcus, tissue