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Microbiology

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Rickettsia and Chlamydia

Question
1 out of 42
 

Which of the following rickettsial disease is spread by tick bite:



A Epidemic typhus

B Rocky mountain spotted fever

C Rickettsial pox

D Scrub typhus

Ans. B Rocky mountain spotted fever

a. Rocky mountain spotted fever caused by R. rickettsii is transmitted by hard tick. It is the most severe of the spotted fever rickettsiosis.

b. It is characterized by acute onset of fever, severe headache, and myalgias.

c. The rash occurs two to six days later, first in the hands and feet, and then moves to the trunk. Diagnosis must be made on clinical presentations, and therapy instituted immediately. Laboratory diagnosis is made on a rising antibody titer (delayed). Untreated disease can be fatal.

Rickettsia and Chlamydia Flashcard List

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