RESUMO
A cross-sectional survey was carried out in Gedaref state, eastern Sudan to investigate the prevalence of positive leishmanin skin tests and environmental factors related to Leishmania donovani infection. A total of 3835 people living in 11 villages in 3 regions were screened. Soil types and tree densities were determined in 33 villages inhabited by 44 different tribes. The highest rates of positive skin tests were in Rahad region (33.9%), Atbara (21.6%) and Gedaref (10.6%), with an average of 21.1% for the state. Risk of infection by L. donovani varied significantly between different tribes. Higher densities of Acacia and Balanites spp. trees were in Masaleet villages, suggesting that the relatively high risk of L. donovani exposure in this tribe is due to environmental factors.
Assuntos
Doenças Endêmicas/estatística & dados numéricos , Exposição Ambiental/efeitos adversos , Leishmania donovani , Leishmaniose Visceral/etiologia , Solo/parasitologia , Árvores/efeitos adversos , Acacia/efeitos adversos , Animais , Balanites/efeitos adversos , Clima , Estudos Transversais , Doenças Endêmicas/prevenção & controle , Exposição Ambiental/análise , Estudos Epidemiológicos , Feminino , Humanos , Leishmaniose Visceral/diagnóstico , Leishmaniose Visceral/epidemiologia , Leishmaniose Visceral/prevenção & controle , Masculino , Programas de Rastreamento , Vigilância da População , Prevalência , Fatores de Risco , Estações do Ano , Testes Cutâneos , Fatores Socioeconômicos , Sudão/epidemiologia , Inquéritos e QuestionáriosRESUMO
A cross-sectional survey was carried out in Gedaref state, eastern Sudan to investigate the prevalence of positive leishmanin skin tests and environmental factors related to Leishmania donovani infection. A total of 3835 people living in 11 villages in 3 regions were screened. Soil types and tree densities were determined in 33 villages inhabited by 44 different tribes. The highest rates of positive skin tests were in Rahad region [33.9%], Atbara [21.6%] and Gedaref [10.6%], with an average of 21.1% for the state. Risk of infection by L. donovani varied significantly between different tribes. Higher densities of Acacia and Balanites spp. trees were in Masaleet villages, suggesting that the relatively high risk of L. donovani exposure in this tribe is due to environmental factors
