Leprosy spread in urban area, part II: reactivity of Soluble Antigen (SA) in three different groups of leprosy contacts in São Gonçalo Rio de Janeiro State Brazil

• Autor(a) principal: ANDRADE, Vera L.G.
• Data de Publicação: 1990
• Outros Autores: SABROZA, Paulo Chagastelles, CASTROS, Antônio J. Werneck de, MOTTA, Célio Paula, ARAUJO, Adauto J.G.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Hansenologia Internationalis (Online)
• Texto Completo: https://periodicos.saude.sp.gov.br/hansenologia/article/view/35501
• topic: Hanseníase; Area Urbana; Epidemiologia; Antígeno solúvel; Inquérito; Contatos; Morbidade; São Gonçalo, RJ, Brasil; Leprosy; Urban area; Soluble antigen; Inquiry; Contacts; Morbidity; Epidemiology; São Gonçalo, RJ, Brazil.

In three different groups of leprosy contacts there were observed results of intradermoreaction to the soluble antigen (SA). In urban area endemic for leprosy (prevalence rate of 2,87 per 1.000 inhabitants) there were studied three groups: 1) intradomiciliary contacts or living together with a case for more than one year; 2) neighboring contacts or extradomiciliary one's; 3) inhabitants in the areas far from the focus. Thirty nine per cent of the 1.569 intradermoreactions were positive. It was demonstrated an association between the positiveness of the intradermoreaction and the proximity of the infection source, with the age and the time of residence in the same dwelling. The SA was considered a good instrument for the identification of the groups of risk for leprosy, although the findings do not quantify its predicting value in the individual diagnosis of the infection.