Streptococcus pyogenes

Rights Managed

SS2104471

E00244

Bacteria: Streptococcus pyogenes. Colored scanning electron micrograph. These gram-positive bacteria are rounded or spherical cocci. They typically form chains of cells, as seen here. Healthy humans may carry these bacteria harmlessly in their throat or nose. Phatogenicstrains of s. pyogenes, however, cause infections of the skin (including impetigo), the uterus following childbirth (puerperal sepsis), and the bloodstream (septicaaemia). S. pyogenes accounts for the high incidence of sore throats, tonsillitis, and middle ear infections (otitis media) in children. Treatment is with penniciline-drugs.

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