This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Haemophilus, Yersinia, Spirochaetes, Ricketssia, Chlamydia, Mycoplasma and Miscellaneous Bacteria), Subject name: Microbiology
Orientia Tsutsugamushi causes: 
Select and explain. 
A. Epidemic typhus, B. Endemic typhus, C. Scrub typhus, D. Q fever
C: Scrub typhus
Answer: C: Scrub typhus 
Explanation: Disease Causative organism Vector Epidemic typhus R. prowazekii Louse Endemic typhus R.typhi Flea Scrub typhus Orientia Tsutsugamushi Mite Q fever Coxiella No ahropod transmission