Monday, April 9, 2012

Top Ten Most important MCQs about Rickettsial Disease



Rickettsiae are obligate intracellular parasites. They are the agents of typhus, spotted fever, and Q fever. Following MCQs are very basic but very important MCQs you must have to master. Some of the below mentioned MCQs have been asked in the entrance exam (to select Microbiology Lecturer ) of Medical Colleges.

  1. Which of the following bacterial species cause Epidemic Typhus?
    a. Rickettsiae prowazekii
    b. Rickettsiae typhi
    c. Rickettsiae tsutsugamushi
    d. Rickettsiae akari
  2. Rocky Mountain Spotted fever is caused by;
    a. Rickettsiae prowazekii
    b. Coxiella burnetii
    c. Rickettsiae rickettsii
    d. Rickettsiae typhi


  3. Which of the following bacterial species can be transmitted via aerosol?
    a. Rickettsiae rickettsii
    b. Rickettsiae typhi
    c. Coxiella burnetii
    d. Rickettsiae prowazekii
  4. Which of the following rickettsial disease is flea borne?
    a. Rocky Mountain Spotted fever
    b. Epidemic Typhus
    c. Endemic Typhus
    d. Scrub Typhus
  5. All of the following rickettsial diseases are zoonoses except the one.....
    a. Rocky Mountain Spotted fever
    b. Endemic Typhus
    c. Scrub Typhus
    d. Epidemic Typhus
  6. Brill-Zinsser disease is caused by
    a. Rickettsiae typhi
    b. Rickettsiae tsutsugamushi
    c. Rickettsiae prowazekii
    d. Rickettsiae rickettsii
  7. Which of the following statement about Rickettsiae is not correct?
    a. Rickettsiae are obligate intracellular bacteria
    b. Weil-Felix test can be used in the diagnosis of rickettsial disease
    c. All the rickettsial diseases are zoonoses
    d. Rickettsiae are gram negative but stain poorly with standard Gram Stain
  8. Which of the following rickettsial disease can to be transmitted from person to person by the human body louse, pediculus?
    a. Epidemic Typhus
    b. Endemic Typhus
    c. Scrub Typhus
    d. Rocky Mountain Spotted Fever
  9. Ticks is an Anthropod vector responsible for the transmission of one of the following organisms?
    a. Rickettsiae prowazekii
    b. Rickettsiae typhi
    c. Rickettsiae tsutsugamushi
    d. Rickettsiae rickettsii
  10. Which of the following Rickettsial disease is not transmitted to humans by the bite of an anthropd vector?
    a. Rickettsial Pox
    b. Q Fever
    c. Rocky Mountain Spotted Fever
    d. Epidemic Typhus.

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