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
Rat flea transmits: 
Select and explain. 
A. Endemic typhus, B. Lassa fever, C. Rabies, D. Trachoma
A: Endemic typhus
Answer: A: Endemic typhus 
Explanation: Ans: a (Endemic typhus) Ref: Park, 19th ed, p. 253Arthropod borne diseases: SandflyKala azarReduvidbugChagas diseaseOriental sore Oraya feverHard tickTick typhusSandfly fever Tick paralysis Viral encephalitisTse tse flySleeping sickness Viral hemorrhagic fever KFDLouseEpidemic typhus TularemiaRelapsing fever Human babesiosisTrench fever PediculosisSoft tickQ fever Relapsing feverRat fleaBubonic plague Endemic typhusTromboculidScrub typhusChiggerosis Hymenolepsis diminutaMiteRickettsialpoxBlack flyOnchocerceriasisItch miteScabies CyclopsGuinea worm and fish tape worm(Diphyllobothrium latum)