Avaliação Epidemiológica da Esquistossomose Mansoni em áreas endêmicas no município de Arapiraca, Alagoas

Abstract

about one million of people live under risk of schistosomiais. Seventy out of one hundred and two cities are exposed to the infection. Most of the cities are in endemic places, mainly in Arapiraca city. Official segments of the Government presented Arapiraca, in the rural area, as a prevalent average of 13.88% to schistosomiasis in the year of 2000 and 6.74% in 2008, in the villages of Bananeiras, Batingas and Cangandu populations. This region presents social, economical and environmental factors that contribute to the infection by Schistosoma mansoni. This study aimed to analyze the epidemic profile and the factors of risk of infection by S. mansoni in the villages of Bananeiras, Batingas and Cangandu in Arapiraca. This is a transversal study with sample of 1,502 (65.88%) that answered the social and economical questionnaire, about the contact with plain water, and parasitological analysis. The samples of feces were analyzed in two slides to each sample by the Kato-Katz method. In this sample 98 patients had the S. mansoni. It was used test Chi-square and Fischer Odds to observe the significance (IC- 95% - p<0,05). The endemic situation was considered moderate about the infection by S. mansoni in 46 individuals with parasite level of 220,70 ± 70,94,7 opg. It was identified significant association to the infection by S. mansoni in relation to places, sex, previous houses, water to drink and wash, if there are sanitary facilities or not, distance of waste, contact with plain water and the distance from the water collection. The study points out the importance in determining the factors of social, environmental and educations risks to reduce the prevalence of schistosomiasis mansoni observing the complexity of these factors in the investigated villages.