The Distribution of Histoplasmin Sensitivity in Guatemala

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  • Middle America Research Unit, Balboa Heights, Canal Zone


The range of histoplasmin sensitivity in 821 Guatemalan hospital patients between the ages of 15 and 60 years of age was found to be 23 to 81% depending on the test area.

The uniformity of histoplasmin sensitivity rates in all age groups tested suggests that most infections are acquired prior to age 15.

The ratio of males to females was approximately 5 to 3, with sensitivity rates of 62 and 49 per cent, respectively.

Author Notes

Medical Service Corps, United States Army; Mycology Section, Middle America Research Unit and United States Army Medical Research Unit (Panama).

Virology Section, Middle America Research Unit, National Institutes of Health, United States Public Health Service, Department of Health, Education, and Welfare.