<prompt> Transovarian transmission is a feature of-Scrub feverEpidemic typhusEndemic typhusTrench fever  <response>: The causative agent of scrub typhus: Rickettsia tsutsugamushi. It is the larva that feeds on veebrate hosts and picks up the rickettsias. The larval stage serves as both as a reservoir, through ovarian transmission and as a vector for infecting humans and rodents refer pgno 300 park 23rd edition 