Chikungunya is caused by ?: (A) Mosquito-borne Alphavirus, (B) Mosquito-borne Beta virus, (C) Mosquito-borne Gamma virus, (D) Mosquito-borne Deltavirus
Answer is A. Chikungunya caused by a mosquito-borne alphavirus.Previous outbreaks had been confined to the tropics, and some have attributed this expansion to global warming. Ref: Harrison's Principles of Internal Medicine, 18e, Chapter 119.Introduction to Infectious Diseases.