This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: VBDs, Arboviral & Viral Infections, Surface Infections, Subject name: Social & Preventive Medicine
Breteau Index is used for: 
Select and explain. 
A. Anopheles, B. Aedes aegypti, C. Culex, D. Hookworm
B: Aedes aegypti
Answer: B: Aedes aegypti 
Explanation: Indices of surveillance of Yellow Fever: 1. Breteau index: No of containers showing breeding of aedes larvae / total no of house surveyed X 100. It should be <1% in town , seapos & in endemic areas to ensure freedom from yellow fever. 2. House index . 3. Container index.