KROK 1 2015 – Question 110 · KROK (Medicine) · Microbiology, Virology, and Immunology
A 4-year-old child presents with general weakness, sore throat and deglutitive problem. After his examination a doctor suspected diphtheria and sent the material to a bacteriological laboratory. To determine the diphtheria causative agent the material should be inoculated into the following differential diagnostic medium:
- A. Levenshtein-Yessen agar
- B. Ploskyrev’s agar
- C. Blood tellurite agar
- D. Endo’s agar
- E. Sabouraud’s agar
Hint
Look for the medium that suppresses most of the throat flora and at the same time lets diphtheria colonies be recognised by a characteristic colour.
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