<prompt> Chandlers index is used for -Hookworm infestationRoundwormMalariaFilaria  <response>: Ans. is a i.e., Hookworm infestation o Morbidity and mortality from hookwork infection depends on the worm load.o Chandler worked out an index, Chandlers index, on the basis of average number of hookworm eggs per gram of feces for the entire community.Average no. of eggs per gram of stools Below 200---Hookworm infection is not much of significance 200-250---Potential danger 250-300---Minor public health problem Above 300---Important public health problem 