10.0k views
0 votes
Which kind of hypersensitive reaction is the result of Mycobacterium tuberculosis?

User Tim Ramsey
by
8.0k points

1 Answer

4 votes

Final answer:

Mycobacterium tuberculosis causes a Type IV hypersensitive reaction known as delayed-type hypersensitivity, detectable through the Mantoux tuberculin skin test.

Step-by-step explanation:

The type of hypersensitive reaction resulting from Mycobacterium tuberculosis is a Type IV hypersensitivity, specifically a delayed-type hypersensitivity (DTH). This reaction is cell-mediated, involving the T-helper 1 (TH1) cytokine-mediated inflammatory response, which can take one to two days after secondary exposure to reach its maximal level. The Mantoux tuberculin skin test is a classical example of this, where a positive test is indicated by a raised red area called an induration, a sign of cellular immune response indicative of previous exposure to the bacteria.

User Henry Dang
by
7.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.