KROK 1 2023 – Question 113 · KROK (Medicine) · Microbiology, Virology, and Immunology

A certain infectious agent can damage mucosa, cause inflammation of internal organs, sepsis, provoke formation of blue-green pus, and is quite resistant to most antibiotics. What pathogen is it?

  1. A. Proteus vulgaris
  2. B. Pseudomonas aeruginosa
  3. C. Staphylococcus aureus
  4. D. Escherichia coli
  5. E. Streptococcus mutans
Hint

Blue-green pus is a clue to a pigment-producing Gram-negative rod that is notorious for hospital infections and intrinsic antibiotic resistance.

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