KROK 1 Stomatology 2013 – Question 113 · KROK (Dentistry)
Microscopy of a smear taken from the film that appeared on the peptone water 6 hours after seeding and culturing of a fecal sample in a thermostat revealed mobile gram-negative bacteria curved in form of a comma that didn’t make spores or capsules. What microorganisms were revealed?
- A. Clostridia
- B. Vibrios
- C. Corynebacteria
- D. Spirochetes
- E. Spirilla
Hint
Think about which pathogen grows quickly as a surface film on alkaline peptone water and has a characteristic comma shape.
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