Schistosomiasis mansoni: follow-up of control program based on parasitologic and serologic methods in a Brazilian community of low endemicity

Memórias do Instituto Oswaldo Cruz
Lanny Cristina Burlandy-SoaresRicardo Mario Ciaravolo

Abstract

A field survey on schistosomiasis was carried out in 1998, in the municipality of Pedro de Toledo, a low endemic area in the state of São Paulo, Brazil. According to the parasitologic Kato-Katz method, the prevalence rate was 1.6%, with an infection intensity of 40.9 eggs per gram of stool. By the immunofluorescence test (IFT) for detection of IgG and IgM antibodies in the serum, IgG-IFT and IgM-IFT, respectively, prevalence indices of 33.2% and 33.5% were observed. To assess the impact of the schistosomiasis control program in the area, parasitologic and serologic data obtained in 1998, analyzed according to the age, sex, and residence zone, were compared to previous data obtained in a epidemiologic study carried out in 1980, when prevalence indices were of 22.8% and 55.5%, respectively by Kato-Katz and IgG-IFT. A significant fall of the prevalence was observed, indicating that the control measures were effective. Nonetheless, residual transmission was observed, demonstrating the need for a joint effort to include new approaches for better understanding the real situation and improving the control of the disease in low endemic areas.

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Citations

Feb 21, 2014·Revista Da Sociedade Brasileira De Medicina Tropical·Luciana Inácia GomesAna Rabello
Aug 30, 2012·Revista Da Sociedade Brasileira De Medicina Tropical·Teiliane Rodrigues CarneiroFernando Schemelzer Moraes Bezerra
Mar 19, 2014·The American Journal of Tropical Medicine and Hygiene·Maria Cristina Carvalho do Espírito-SantoRonaldo Cesar Borges Gryschek
Dec 18, 2016·Molecular and Cellular Probes·Rebecca HinzHagen Frickmann
Jan 4, 2018·Parasitology·Maria Teresinha Gomes CasavechiaJorge Juarez Vieira Teixeira
Aug 1, 2015·Clinical Microbiology Reviews·Kosala G A D WeerakoonDonald P McManus
Aug 23, 2008·Revista Da Sociedade Brasileira De Medicina Tropical·Marco Antônio Andrade de SouzaConstança Simões Barbosa
Feb 19, 2008·Cadernos de saúde pública·Cybele GargioniHermínia Yohko Kanamura

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