Rickettsia Bacteria MCQs

  1. Which of the following is a characteristic feature of Rickettsia bacteria?
    • a) Gram-positive staining
    • b) Gram-negative staining
    • c) Obligate intracellular parasites ✅
    • d) Spore-forming

  2. Which Rickettsia species is responsible for causing Rocky Mountain spotted fever?
    • a) Rickettsia prowazekii
    • b) Rickettsia rickettsii ✅
    • c) Rickettsia typhi
    • d) Rickettsia conorii

  3. Which of the following is a common symptom of Rocky Mountain spotted fever?
    • a) Fever ✅
    • b) Skin rash
    • c) Diarrhea
    • d) Coughing up blood

  4. Which of the following is a common treatment for Rocky Mountain spotted fever?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  5. Which Rickettsia species is responsible for causing epidemic typhus?
    • a) Rickettsia prowazekii ✅
    • b) Rickettsia rickettsii
    • c) Rickettsia typhi
    • d) Rickettsia conorii

  6. Which of the following is a common symptom of epidemic typhus?
    • a) Fever ✅
    • b) Skin rash
    • c) Diarrhea
    • d) Coughing up blood

  7. Which of the following is a common treatment for epidemic typhus?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  8. Which Rickettsia species is responsible for causing murine typhus?
    • a) Rickettsia prowazekii
    • b) Rickettsia rickettsii
    • c) Rickettsia typhi ✅
    • d) Rickettsia conorii

  9. Which of the following is a common symptom of murine typhus?
    • a) Fever ✅
    • b) Skin rash
    • c) Diarrhea
    • d) Coughing up blood

  10. Which of the following is a common treatment for murine typhus?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  11. Which Rickettsia species is responsible for causing Mediterranean spotted fever?
    • a) Rickettsia prowazekii
    • b) Rickettsia rickettsii
    • c) Rickettsia typhi
    • d) Rickettsia conorii ✅

  12. Which of the following is a common symptom of Mediterranean spotted fever?
    • a) Fever ✅
    • b) Skin rash
    • c) Diarrhea
    • d) Coughing up blood

  13. Which of the following is a common treatment for Mediterranean spotted fever?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  14. Which of the following is a characteristic of Rickettsia prowazekii that makes it difficult to culture?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It requires special culture media ✅
    • d) It is a spore-forming bacterium.

  15. Which of the following is a characteristic of Rickettsia rickettsii that makes it difficult to culture?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It requires special culture media ✅
    • d) It is a spore-forming bacterium.

  16. Which of the following is a characteristic of Rickettsia typhi that makes it difficult to culture?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It requires special culture media ✅
    • d) It is a spore-forming bacterium.

  17. Which of the following is a characteristic of Rickettsia conorii that makes it difficult to culture?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It requires special culture media ✅
    • d) It is a spore-forming bacterium.

  18. Which of the following is a common route of transmission for Rickettsia prowazekii?
    • a) Ingestion
    • b) Inhalation
    • c) Flea bite ✅
    • d) Vector-borne

  19. Which of the following is a common route of transmission for Rickettsia rickettsii?
    • a) Ingestion
    • b) Inhalation
    • c) Tick bite ✅
    • d) Vector-borne

  20. Which of the following is a common route of transmission for Rickettsia typhi?
    • a) Ingestion
    • b) Inhalation
    • c) Flea bite ✅
    • d) Vector-borne

  21. Which of the following is a common route of transmission for Rickettsia conorii?
    • a) Ingestion
    • b) Inhalation
    • c) Tick bite ✅
    • d) Vector-borne

  22. Which of the following is a characteristic of Rickettsia prowazekii that makes it difficult to visualize?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It is too small to be seen with a light microscope ✅
    • d) It is a spore-forming bacterium.

  23. Which of the following is a characteristic of Rickettsia rickettsii that makes it difficult to visualize?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It is too small to be seen with a light microscope ✅
    • d) It is a spore-forming bacterium.

  24. Which of the following is a characteristic of Rickettsia typhi that makes it difficult to visualize?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It is too small to be seen with a light microscope ✅
    • d) It is a spore-forming bacterium.

  25. Which of the following is a characteristic of Rickettsia conorii that makes it difficult to visualize?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It is too small to be seen with a light microscope ✅
    • d) It is a spore-forming bacterium.

  26. Which of the following is a common diagnostic method for Rickettsia prowazekii?
    • a) Gram staining
    • b) PCR ✅
    • c) Acid-fast staining
    • d) ELISA

  27. Which of the following is a common diagnostic method for Rickettsia rickettsii?
    • a) Gram staining
    • b) PCR ✅
    • c) Acid-fast staining
    • d) ELISA

  28. Which of the following is a common diagnostic method for Rickettsia typhi?
    • a) Gram staining
    • b) PCR ✅
    • c) Acid-fast staining
    • d) ELISA

  29. Which of the following is a common diagnostic method for Rickettsia conorii?
    • a) Gram staining
    • b) PCR ✅
    • c) Acid-fast staining
    • d) ELISA
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