Question

These organisms can grow within macrophages and resist killing by these immune cells is a facultative intracellular parasite. Which of the following fall in this category?

(a) Klebsiella pneumoniae
(b) Mycobacterium tuberculosis
(c) Chlamydia trachomitis
(d) Salmonella typhimurium
(e) Yersinia pestis

A) b, c, and d
B) a and b
C) a, c, and e
D) b, d, and e

Answer 1

Mycobacterium tuberculosis, Chlamydia trachomatis, and Salmonella typhimurium are facultative intracellular parasites that can grow within macrophages and resist killing by immune cells.

Step-by-step explanation:

The organisms that can grow within macrophages and resist killing by these immune cells are facultative intracellular parasites. In this case, the organisms that fall in this category are Mycobacterium tuberculosis, Chlamydia trachomatis, and Salmonella typhimurium. So, the correct answer is option A) b, c, and d.