Which statements regarding Mycobacterium tuberculosis are true regarding the bacilli's ability to go into dormancy? (Select all that apply.)
A) Neutrophils and macrophages all play a role in its dormancy.
B) Mycobacterium tuberculosis is capable of dormancy but for only a short period.
C) The immune system is the controlling factor regarding its length of dormancy.
D) The bacilli are sealed off in tubercles to allow for dormancy.
E) An attack by lymphocytes brings the bacilli out of their dormant state.

Question

Quizplus · Accepted Answer

Neutrophils,lymphocytes,and macrophages seal off the colonies of bacilli,forming a granulomatous lesion called a tubercle.Once the bacilli are isolated in tubercles and immunity develops,tuberculosis may remain dormant for life.If the immune system is impaired,however,or if live bacilli escape into the bronchi,active disease occurs and may spread through the blood and lymphatic system to other organs.This microorganism can remain dormant for extended periods.Reverting from dormancy is not related to a lymphocyte attack.

Which Statements Regarding Mycobacterium Tuberculosis Are True Regarding the Bacilli's