Risk factors for Leishmania chagasi infection in an urban area of Minas Gerais State

• Autor(a) principal: Moreno,Elizabeth Castro
• Data de Publicação: 2005
• Outros Autores: Melo,Maria Norma, Genaro,Odair, Lambertucci,José Roberto, Serufo,José Carlos, Andrade,Antero Silva Ribeiro, Antunes,Carlos Mauricio Figueiredo, Carneiro,Mariângela
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista da Sociedade Brasileira de Medicina Tropical
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822005000600002
• topic: Visceral leishmaniasis; Kala-Azar; Leishmania chagasi; Asymptomatic infection; Risk factors

In order to understand the determinants of human infection by Leishmania chagasi in an urban area, a cross-sectional population based study was conducted using molecular and serologic methods to identify infection. Participants were interviewed using a pre-coded questionnaire. Two criteria were tested to identify risk factors: Model 1- including all participants positive in hybridization by Leishmania donovani complex probe; Model 2- including all participants positive for hybridization and at least one serologic test. In Model 1, the variables associated with infection were: ownership of birds, time spent outside house between 6:00-10:00 PM and garbage not collected. In Model 2, the variables associated with infection were: family with knowledge of the vector, garbage not collected, garbage not removed or buried, ownership of birds and eroded areas in the neighborhood. The risk factors identified were associated with household conditions, presence of animals and the likelihood of contact with phlebotomine sandflies.