Exam 43: Obligate Intracellular and Non-culturable Bacterial Agents

A prokaryote that differs from most other bacteria with respect to its very small size and obligates intracellular parasitism is:

The Coxiella burnetii, an acute systemic infection, primarily affects the lungs and can exist in two antigenic states.The reference method that is both highly specific and sensitive and is recommended for identification is:

Tropheryma whipplei is characterized by the presence of periodic acid-Schiff (PAS)-staining macrophages, which indicates mucopolysaccharide or glycoprotein, in almost every organ system.Without treatment, this disease is uniformly fatal.Identification is achieved using:

Of the following organisms, which can be described as a fastidious obligate intracellular parasite that multiplies by binary fission in the cytoplasm of host cells and infects humans as accidental hosts in most cases?

Binary fission within vacuoles divides which of the following forms of Chlamydia?

The drug of choice for the treatment of granuloma inguinale, which is a major cause of genital ulcers in India, New Guinea, and part of South America, is:

Which of the following vectors transmit scrub typhus?

Of the following organisms, which has a unique developmental life cycle including a replicative form, the reticulate body (RB), and an extracellular, metabolically inert, infective form, the elementary body (EB)?

A Weil-Felix test was performed on serial dilutions from a patient bitten by a tick.The results obtained were positive for OX-19 and negative for OX-2 and OX-K.Based on these findings, the organism can be identified as:

The most common sexually transmitted bacterial pathogen and a major cause of pelvic inflammatory disease (PID)is: