Pathogenic treponemas can be maintained in________________?
Correct answer: D. Rabbit testis only
- A. Tissue culture
- B. Chick embryos
- C. Artificial media
- D. Rabbit testis only
Explanation
Pathogenic Treponema pallidum cannot be grown on ordinary artificial media and is classically maintained by passage through rabbit testes. This contrasts with nonpathogenic treponemes, which are easier to cultivate in laboratory systems.
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