This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Chandler's Index is for which of the following? 
Select and explain. 
A. Round worm, B. Hook worm, C. Pin worm, D. Guinea worm
B: Hook worm
Answer: B: Hook worm 
Explanation: Ans. b (Hookworm) (Ref. Park Textbook of PSM 22nd/pg.222)CHANDLER INDEX# It is based on average number of hookworm eggs per gram of faeces for entire community.# Average number of eggs per gram of stools.No. of Eggs per Gram of FaecesImportanceBelow 200Hookworm infection is not of much significance200-250May be regarded as potential danger250-300Minor public health problemAbove 300Important public health problem