KROK 1 2019 – Question 116 · KROK (Medicine) · Microbiology, Virology, and Immunology
A 2.5-year-old child is provisionally diagnosed with pharyngeal diphtheria. Smear from the child’s mucosa was obtained and inoculated into a coagulated equine serum. What is the purpose of this stage of microbiological diagnostics?
- A. Analysis of antigenic properties
- B. Pure culture isolation
- C. Determination of biochemical properties
- D. Determination of toxin serotype
- E. Detection of toxigenicity
Hint
Think about what the first inoculation of patient material on a medium favouring the suspected pathogen is meant to provide, before identification and toxin tests.
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