Visceral leishmaniasis in Ethiopia. II. Annual leishmanin transformation in a population. Is positive leishmanin reaction a life-long phenomenon?
A one-year follow-up leishmanin skin test was undertaken in 605 subjects aged five years and above. The point prevalence of leishmanin positivity in the selected age group was 46.8%; 62.5% of the males and 32.1% of the females showed positive leishmanin reactions. The annual incidence of skin test transformation was 14.8%. In this study, positive to negative leishmanin conversion was noted in 9.3% of study subjects with initial positive leishmanin reaction.
Ali
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Institute of Pathobiology, Addis Ababa University, Ethiopia.
Ashford
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RW
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000953:Antigens, Protozoan / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D005002:Ethiopia / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007898:Leishmaniasis, Visceral / Q000453:epidemiology* / Q000276:immunology; D008297:Male; D008875:Middle Aged; D012882:Skin Tests
D000953:Antigens, Protozoan; C032127:leishmanin