Does group A streptococcal (GAS) infection cause glomerulonephritis?

Updated: Sep 07, 2018
  • Author: Zartash Zafar Khan, MD, FACP; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Glomerulonephritis can follow group A streptococcal infections of either the pharynx or the skin, and incidence varies with the prevalence of so-called nephritogenic strains of group A streptococci in the community. Type 12 is the most frequent M serotype that causes PSGN after pharyngitis, and M type 49 is the serotype most commonly related to pyoderma-associated nephritis. The latent period between GAS infection and the onset of glomerulonephritis varies from 1-2 weeks.

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