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A Study of Histoplasmin Skin Tests among School Children in Cali and Candelaria (Valle Del Cauca), Colombia^*

Guillermo Orozco O., Robert H. Lennox AND Guy S. Hayes

A total of 1,633 skin tests with histoplasmin, performed from 1961–63 on school children in the city of Cali, Colombia and in the nearby rural village of Candelaria, indicated that Histoplasma capsulatum is endemic in Candelaria, whereas in Cali a much lower percentage of positive reactors was found. Some of the possible reasons for the difference are discussed.

^* This study was supported in part by funds from The Rockefeller Foundation, New York.

Associate Professor of Medicine, Facultad de Medicina, Universidad del Valle, Cali, Colombia.

Formerly member of Field Staff, The Rockefeller Foundation and Visiting Professor in Pediatrics, Universidad del Valle; presently Professor of Pediatrics and Child Health, Tulane University School of Medicine, New Orleans, Louisiana.

Assistant Director, The Rockefeller Foundation and Visiting Professor in Preventive Medicine, Universidad del Valle.