This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Culex mosquito spreads all of the following disease except: March 2008 
Select and explain. 
A. Viral ahritis, B. West Nile fever, C. Yellow fever, D. Bancroftian filariasis
C: Yellow fever
Answer: C: Yellow fever 
Explanation: Ans. C: Yellow fever The yellow fever mosquito, Aedes aegypti (= Stegomyia aegypti = Aedes (Stegomyia) aegypti), is a mosquito that can spread the dengue fever, Chikungunya and yellow fever viruses. The mosquito can be recognized by white markings on legs and a marking in the form of a lyre on the thorax.