HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Angela, R. M. Articles by Alberto, C. L. Search for Related Content PubMed PubMed Citation Articles by Angela, R. M. Articles by Alberto, C. L.

Distribution of Paracoccidioidin Sensitivity in Colombia^*

Skin-testing with paracoccidioidins (mycelial and yeast), histoplasmin, and tuberculin was done in various rural counties where recent cases of paracoccidioidomycosis had been reported. The total percentage of positive reactions to the mycelial paracoccidioidin was 9.6% and to the yeast product, 6.4%. Prevalence rates, however, varied from county to county from 6.0% to 13.0% Age, occupation, and other factors influenced such rates. Positive reactions to histoplasmin were in the range of 21.0%. The frequency distribution of the size of the reactions to the mycelial paracoccidioidin in some of the regions surveyed showed that the population was being tested with the specific antigen. In other regions, the frequency distribution revealed mainly crossreactions, possibly to H. capsulatum. The presence of a certain number of persons who reacted to paracoccidioidin but not to histoplasmin and the frequency distribution of the size of the paracoccidioidin reactions tend to show that a percentage of normal persons had acquired a benign, self-limited infection with P. brasiliensis.

^* These studies were supported by Research Grant AI-006637 from the National Institutes of Health, United States Public Health Service.