KROK 1 Stomatology 2013 – Question 56 · KROK (Dentistry)
When examining a child the dentist found the deposit on both tonsils and suspected atypical form of diphtheria. A smear was taken, and after the nutrient media inoculation the toxicity of the isolated pure culture was determined. What reaction was used to determine the toxigenicity of the isolated strain of diphtheria bacillus?
- A. Gel precipitation reaction
- B. Agglutination reaction on a glass slide
- C. Hemolysis reaction
- D. Complement binding reaction
- E. Ring precipitation reaction
Hint
Recall the standard test that detects exotoxin secreted by a growing culture with the help of diphtheria antitoxin, and what type of antigen–antibody reaction it is.
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