<prompt> Ricketssia Reckettsii is responsible for which disease -Endemic typhusEpidemic typhusScrub typhusRocky mountain spotted fever  <response>: Ans. is d i.e., Rocky mountain spotted fever VectorDiseases and organisms1 MiteScrub typhus R. tsutsugamushi, Rickettsial pox R. akari2 LouseEpidemic typhus R. prowaekii, Trench fever R. quintana3 FleaEndemic or murine typhus R. typhi4 TickIndian tick typhus R. conorii, RMSF R. Rickettsii 