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Dermatophytosis among Schoolchildren in Three Eco-climatic Zones of Mali

Abstract : BACKGROUND: Dermatophytosis, and particularly the subtype tinea capitis, is common among African children; however, the risk factors associated with this condition are poorly understood. To describe the epidemiology of dermatophytosis in distinct eco-climatic zones, three cross-sectional surveys were conducted in public primary schools located in the Sahelian, Sudanian and Sudano-Guinean eco-climatic zones in Mali. PRINCIPAL FINDINGS: Among 590 children (average age 9.7 years) the overall clinical prevalence of tinea capitis was 39.3%. Tinea capitis prevalence was 59.5% in the Sudano-Guinean zone, 41.6% in the Sudanian zone and 17% in the Sahelian eco-climatic zone. Microsporum audouinii was isolated primarily from large and/or microsporic lesions. Trichophyton soudanense was primarily isolated from trichophytic lesions. Based on the multivariate analysis, tinea capitis was independently associated with male gender (OR = 2.51, 95%CI [1.74-3.61], P<10-4) and residing in the Sudano-Guinean eco-climatic zone (OR = 7.45, 95%CI [4.63-11.99], P<10-4). Two anthropophilic dermatophytes species, Trichophyton soudanense and Microsporum audouinii, were the most frequent species associated with tinea capitis among primary schoolchildren in Mali. CONCLUSIONS: Tinea capitis risk increased with increasing climate humidity in this relatively homogenous schoolchild population in Mali, which suggests a significant role of climatic factors in the epidemiology of dermatophytosis.
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Submitted on : Monday, May 2, 2016 - 1:45:13 PM
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Oumar Coulibaly, Abdoulaye Koné, Safiatou Niaré-Doumbo, Siaka Goïta, Jean Gaudart, et al.. Dermatophytosis among Schoolchildren in Three Eco-climatic Zones of Mali. PLoS Neglected Tropical Diseases, Public Library of Science, 2016, ⟨10.1371/journal.pntd.0004675⟩. ⟨hal-01310335⟩

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