SciELO - Scientific Electronic Library Online

vol.23 issue2Matrix support and reference team: a methodology for interdisciplinary health work managementMilitary rank and AIDS proportionate mortality in the Brazilian Navy author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Cadernos de Saúde Pública

Print version ISSN 0102-311XOn-line version ISSN 1678-4464


ARAUJO, Karina Conceição Gomes Machado et al. Spatial analysis of Biomphalaria glabrata foci and human cases of mansoni schistosomiasis in Porto de Galinhas, Pernambuco State, Brazil, in the year 2000. Cad. Saúde Pública [online]. 2007, vol.23, n.2, pp.409-417. ISSN 0102-311X.

This article provides information on the spatial distribution of schistosomiasis, correlating snail foci with human cases using spatial analysis. The locations studied were Merepe III, Pantanal, Salinas, and Socó, comprising 70% of the populated area of Porto de Galinhas. Malacological and parasitological surveys by a CPqAM/ FIOCRUZ team at the location where an epidemic occurred in 2000 identified 15 foci of infected B. glabrata. Human cases were also diagnosed and recorded according to residential block. Spatial analysis was performed using the TerraView computer program and Kernel intensity estimation. Total infection rates, considering all collection stations marked out per location, varied from 15% to 32.4%. The 15 infected B. glabrata foci included 9 in Merepe, 2 in Socó, 3 in Salinas, and 1 in Pantanal. The results suggest a strong spatial trend in the risk of schistosomiais transmission in Salinas and Socó. In Merepe, with the most foci and where foci were closer together, individual focal infection rates were lower. Spatial analysis thus showed less concentration of risk as compared to other locations studied. As for human cases, two high-intensity areas were observed, shown on the map in darker colors.

Keywords : Spatial Analysis; Schistosomiasis; Biomphalaria.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License