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 index is used for - 
Select and explain. 
A. Anchylostoma duodenale, B. Ascariasis, C. Guinea worm infestations, D. Filariasis
A: Anchylostoma duodenale
Answer: A: Anchylostoma duodenale 
Explanation: <p> Chandlers index is used for hook worm infestation. Reference:Park&;s textbook of preventive and social medicine,K.Park,21st edition,page no:221 & 22nd edition, pg no:221. <\p>