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Ancylostoma Ceylanicum: a Parasite of Man in Calcutta and Environs
Sixteen of 183 persons (8.7%) of a predominantly rural sample population (175 from a village 40 miles north of Calcutta and 8 from the city) harbored Ancylostoma ceylanicum. In all but one instance this species occurred concurrently with both Necator americanus and A. duodenale; in the remaining case it was recovered with the latter only. A. ceylanicum constituted 0.1% of all the hookworms recovered, and even in the 16 persons infected with this species it accounted for only 1.3% of the worms. In only one of these infections were both sexes represented.
Author Notes
Division of Parasitology, Calcutta School of Tropical Medicine, Calcutta 12, India.
Department of Pathobiology, School of Hygiene and Public Health, The Johns Hopkins University, 615 North Wolfe Street, Baltimore, Maryland 21205.