This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Entomology, Subject name: Social & Preventive Medicine
Chandler's index is associated with: 
Select and explain. 
A. Hook worm, B. Pin worm, C. Roundworm, D. Guinea worm
A: Hook worm
Answer: A: Hook worm 
Explanation: Ans. (a) HookwormRef : K. Park 23rd ed. / 243-44* CHANDLER'S INDEX is also known as Endemic index.* It is defined as average number of hookworm eggs per gram of stool for the entire community.* >300 eggs per gram of stool denotes important public health problem.Interpretation of chandler's index:Average No. of eggs/gm of stoolInterpretation* <200No significance* 200-250Potential danger* 250-300Minor public health problem* >300Major public health problem