Análise crítica da estimativa do número de portadores de esquistossomose mansoni no Brasil

Abstract

Resumo Estimou-se o número de portadores da infecção por Schistosoma mansoni no Brasil baseando-se no resultado de exames parasitológicos de fezes realizados pela Fundação Nacional de Saúde nos anos de 1996 e 1997 e os dados de população de 18 estados da federação no levantamento do IBGE. Os dados permitiram estimar em 7,1 milhões de portadores de esquistossomose em 1996 e em 6,3 milhões em 1997. Esses números podem não representar a realidade, pois a amostra da população examinada não foi selecionada visando este objetivo. A ausência de dados precisos indica a necessidade de adequado levantamento nacional da prevalência da esquistossomose que continua a ser importante endemia parasitária, justificando esforços maiores para o seu controle no Brasil. Palavras-chaves: Esquistossomose mansoni. Brasil. Prevalência. AbstractThe number of carriers of Schistosoma mansoni infection in Brazil was estimated based on the results of parasitological examinations of feces carried out by the Fundação Nacional de Saúde (FNS -National Health Foundation) in 1996 and 1997, as well as population data from 18 states collected by the Instituto Brasileiro de Geografia e Estatística (IBGE -Brazilian Institute of Geography and Statistics). This information allowed the number of carriers of schistosomiasis mansoni to be estimated at 7.1 million in 1996 and 6.3 million in 1997. These figures may not reflect the true situation since the population sample used was not originally selected for this purpose. The absence of precise data indicates the need for an adequate national survey of the prevalence of schistosomiasis, which continues to be an important endemic parasitic disease, justifying greater efforts for its control in Brazil.

Spatial analysis for the identification of risk areas for schistosomiasis mansoni in the State of Sergipe, Brazil, 2005-2014

“…This resurgence is related to deficiencies in the sanitation infrastructure in poor peri-urban areas of cities. Disease transmission control goes beyond the capacity of health professionals, and mass treatment should be done with government actions that combine installation of water and sewage in houses, changes in the environment, health education, combating snails, in addition to the diagnosis and treatment of infected persons (37) .…”

Reliability of current estimates of schistosomiasis prevalence in the Rainforest Zone of the state of Pernambuco, Northeastern Brazil

“…Such problems must be overcome in the short term not only to attend the increasing demand for diagnosis and treatment, but also to provide trustworthy information on the current status of schistosomiasis in that endemic area. The lack of reliable estimates about schistosomiasis has also been a matter of concern in other endemic areas of this Country, indicating the need of a prevalence survey at the national level (Katz & Peixoto 2000).…”

Information and education in schistosomiasis control: an analysis of the situation in the State of Minas Gerais, Brazil

“…Recently, Passos and Amaral (1998) presented the prevalences estimated by state, from data collected by the National Health Foundation (Funasa), demonstrating an increase in prevalence in Minas Gerais, in 1997, compared to 1996. The data presented in the analysis of Katz and Peixoto (2000) indicate prevalences of 8.97% for 1996 and 7.84% for 1997, corresponding to almost a million and a half sick people with 15 million exposed to the risk of the disease in the state.…”