Which agent is described as tuberculocidal?

• A. Alcohol
• B. Tuberculocidal disinfectant
• C. Soap
• D. Hydrogen peroxide

Answer: (B)

Tuberculocidal refers to a disinfectant that has been tested and proven to kill Mycobacterium tuberculosis, the bacteria that causes TB. In practice, only products that carry an explicit tuberculocidal claim on their label meet that standard and are used for surfaces where a higher level of disinfection is required.

From the options, the only one that carries the tuberculocidal designation is the tuberculocidal disinfectant. Alcohol, soap, and hydrogen peroxide are disinfectants or cleaners in general, but they do not carry the specific tuberculocidal claim on their labels in the way that a tuberculocidal disinfectant does. Therefore, the tuberculocidal disinfectant is the correct choice because it is the product described as tuberculocidal and capable of killing TB when used according to the label.