Transovarian transmission is a feature of-
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)
Scrub fever
Epidemic typhus
Endemic typhus
Trench fever
Epidemiology