Micro & Immunology · single question

Which bacterium is involved in erysipelas?

  1. Beta-hemolytic Streptococcus
  2. Staphylococcus aureus
  3. Pseudomonas aeruginosa
  4. Escherichia coli
Show answer and explanation

Correct answer: A. Beta-hemolytic Streptococcus

  • A. CORRECT. Erysipelas is caused by Group A beta-hemolytic Streptococcus.
  • B. INCORRECT. S. aureus causes other skin infections such as impetigo and abscesses.
  • C. INCORRECT. Pseudomonas is not the typical cause.
  • D. INCORRECT. E. coli is a gut organism, not the cause of erysipelas.

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