AJTMH Transactions of the Royal Society of Tropical Medicine and Hygiene
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Am. J. Trop. Med. Hyg., 1(4), 1952, pp. 680-687
Copyright © 1952 by The American Society of Tropical Medicine and Hygiene

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Schistosomiasis in an Endemic Area in the Dominican Republic1

Louis Olivier, Charles M. Vaughn AND James R. Hendricks
Laboratory of Tropical Diseases, National Institutes of Health, Bethesda 14, Maryland; Institute of Tropical Medicine, Bowman Gray School of Medicine, Winston-Salem, N. C.; School of Public Health, University of North Carolina, Chapel Hill, N. C.

A study was made of the endemic area of schistosomiasis mansoni at Hato Mayor in the Dominican Republic. Australorbis glabratus, the snail host for Schistosoma mansoni, seems to have a very restricted distribution in the vicinity of Hato Mayor. Numerous A. glabratus were found in streams close to the town but none was found in other streams up to 20 kilometers from the town. Many of the snails harbored cercariae which developed into adult S. mansoni in mice. Examination of a single stool from each of 243 children between the ages of 5 and 15 living in Hato Mayor revealed 52 infections with S. mansoni.

It is concluded that a serious endemic focus of schistosomiasis mansoni exists in the vicinity of Hato Mayor, and that the disease is being acquired by a relatively large proportion of the children of the town. Because the endemic area is apparently restricted to narrow geographic limits, it is considered especially well suited for a study on the use of molluscacides in the control of schistosomiasis mansoni.


1 This investigation was conducted jointly by the Institute of Tropical Medicine, Bowman Gray School of Medicine and the Laboratory of Tropical Diseases, National Institutes of Health. The Institute of Tropical Medicine is supported by the West Indies Sugar Corp., Eli Lilly and Company, Parke Davis and Company, the Roche Anniversary Foundation, G. D. Searle and Company, and Ex-Lax Inc.

The interest and cooperation of the Dominican Ambassador, Dr. Luis F. Thomen, and representatives of the Dominican Ministry of Health are gratefully acknowledged.






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Copyright © 1952 by the American Society of Tropical Medicine and Hygiene.