Transovarian transmission is a feature of -: (A) Scrub typhus, (B) Epidemic typhus, (C) Endemic typhus, (D) Trench fever
Answer is A. In scrub typhus, the infection is maintained in nature transovarially from one generation of mite to the next. Ref: PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition pg 300