This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Quintan fever is caused by- 
Select and explain. 
A. C. burnetti, B. B quintana, C. Rprowazekii, D. Rakari
B: B quintana
Answer: B: B quintana 
Explanation: Ans. is 'b' i.e., B quintana* Trench fever, also called 5-day fever or quintan fever, is caused by Bartonella quintana (Rochalimaea quintana).DiseaseAgentInsect vectorMammalian reservoir1. Typhus group a. Epidemic typhusR. prowazekiiLouseHumansb. Murine typhus (Endemic typhus)R. typhiFleaRodentsc. Scrub typhusR. tsutsugamushiMiteRodents2. Spotted fever group a. Indian tick typhusR.conoriiTickRodents, dogsb. Rocky mountain spotted feverR.rickettsiiTickRodents, dogsc. Rickettsial poxR. akariMiteMice3. Others a. Q feverC.burnetiiNilCattle, sheep, goats.b. Trench feverRocholimaca quintanaLouseHumans