KROK 1 2021 – Question 108 · KROK (Medicine) · Microbiology, Virology, and Immunology

The ophthalmologist noticed a purulent discharge from the conjunctiva of a newborn. Microscopy of the smear obtained from the conjunctiva found there a large number of leukocytes, as well as gram-negative bean-shaped diplococci located inside the leukocytes. What is the causative agent of this disease?

  1. A. Staphylococcus epidermidis
  2. B. Staphylococcus aureus
  3. C. Streptococcus pyogenes
  4. D. Neisseria gonorrhoeae
  5. E. Neisseria catarrhalis
Hint

Think of the organism that infects a newborn's eye during passage through the birth canal and appears as kidney-shaped paired cocci inside pus cells.

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