A thirty years follow-up study on Schistosomiasis mansoni in a community of Minas Gerais, Brazil.
During thirty years - 1973-2003 - a group of individuals infected by Schistosoma mansoni in Capitão Andrade, Rio Doce Valley, Minas Gerais, Brazil, was evaluated by the same authors, being one of the longest follow-up studies on schistosomiasisis mansoni in an endemic area. The diagnosis of S. mansoni was based on parasitological stool tests. In the clinical classification, three groups were considered: type I - schistosomiasis-infection, type II - hepatointestinal form, and type III- hepatosplenic form. The prevalence of infection were 60.8% in 1973, 36.2% in 1984, 27.3% in 1994, and 19.4% in 2003, while the index of hepatosplenomegaly were respectively 5.8%, 2.8%, 2.3% and 1.3%. The maintenance of high prevalence and severity of clinical forms are probably related to reinfection.
Conceição
Maria José
MJ
Programa de Pós-graduação em Doenças Infecciosas e Parasitárias, Departamento de Medicina Preventiva, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, 21941-590 Rio de Janeiro, Brasil. elampe@ioc.fiocruz.br
Borges-Pereira
José
J
Coura
José Rodrigues
JR
D000818:Animals; D001938:Brazil / Q000453:epidemiology; D019353:Endemic Diseases; D005500:Follow-Up Studies; D006801:Humans; D015995:Prevalence; D012555:Schistosomiasis mansoni / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology