Susceptibility to thiophene-2-carboxylic acid hydrazide (T2H) is characteristic of which Mycobacterium?

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Multiple Choice

Susceptibility to thiophene-2-carboxylic acid hydrazide (T2H) is characteristic of which Mycobacterium?

Explanation:
Susceptibility to a chemical test chemical, such as thiophene-2-carboxylic acid hydrazide, is used to differentiate members of the Mycobacterium tuberculosis complex. In this context, M. bovis shows growth inhibition when exposed to T2H, whereas other common mycobacteria do not, so the pattern of susceptibility points to M. bovis. This distinction helps separate M. bovis from organisms like M. avium-intracellulare complex, M. kansasii, and M. tuberculosis, which do not display this susceptibility.

Susceptibility to a chemical test chemical, such as thiophene-2-carboxylic acid hydrazide, is used to differentiate members of the Mycobacterium tuberculosis complex. In this context, M. bovis shows growth inhibition when exposed to T2H, whereas other common mycobacteria do not, so the pattern of susceptibility points to M. bovis. This distinction helps separate M. bovis from organisms like M. avium-intracellulare complex, M. kansasii, and M. tuberculosis, which do not display this susceptibility.

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