From what conditions does scarlet fever evolve?

Updated: Jun 21, 2019
  • Author: Bahman Sotoodian, MD; Chief Editor: William D James, MD  more...
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Ordinarily, scarlet fever evolves from a tonsillar/pharyngeal focus, although the rash develops in less than 10% of cases of “strep throat.” The site of bacterial replication tends to be inconspicuous compared to the possible dramatic effects of released toxins. Exotoxin-mediated streptococcal infections range from localized skin disorders to the widespread eruption of scarlet fever to the uncommon but highly lethal streptococcal toxic shock syndrome.

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