scanning electron micrograph (SEM) of clusters of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria

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Under a moderate magnification of 2,969X, this scanning electron micrograph (SEM) revealed a number of clusters of Gram-positive, beta-hemolytic Group C Streptococcus sp. bacteria. The genus Streptococcus is comprised of microaerophilic cocci (round), which are not motile and occur in chains or pairs. The genus is defined by a combination of antigenic, hemolytic, and physiological characteristics into Groups A, B, C, D, F, and G. Groups A and D can be transmitted to humans via food.

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Photo credit: © Scott Camazine / Alamy / Afripics
License: Licensed
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Keywords: bacteria, beta-hemolytic, electron, group, illness, microbiology, microscope, pathogen, scanning, sem, strep, streptococcus