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
Transovarian transmission is a feature of - 
Select and explain. 
A. Scrub typhus, B. Epidemic typhus, C. Endemic typhus, D. Trench fever
A: Scrub typhus
Answer: A: Scrub typhus 
Explanation: 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