Inquérito epidemiológico de infecções parasitárias intestinais em trabalhadores rurais canavieiros nas regiões de Campinas e Ribeirão Preto / Epidemiological survey of intestinal parasitic infections in rural sugarcane workers in the regions of Campinas and Ribeirão Preto

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

19/08/2011

RESUMO

Intestinal parasitic diseases represent a serious public health problem worldwide, with prevalence rates varying in each region, and socioeconomic and environmental factors to corroborate maintaining or increasing the number of cases. Rural workers in sugar cane plantations, due to weather conditions and which are submitted during the rural work, and suffer daily exposures to parasitic agents. They form a population group whose health is neglected due to lack of information in the literature. Our objectives were: assess the prevalence of intestinal parasitic infections among rural workers in two major sugar cane growing regions of São Paulo (Ribeirão Preto and Campinas) fate of thousands of migrants from different regions of Brazil from sugar cane crop; benchmarking the methods of Ziehl Neelsen modified and Auramina O for detection of oocysts of intestinal coccidia and the techniques of Hoffman, Pons and Janer (H.P.J.) and Coprokit ® for detection of helminth eggs. Three fecal samples were analyzed from 617 individuals, which were processed by the methods of spontaneous sedimentation, Faust et al., Rugai et al., Willis et al. Coprokit ®, and the staining methods Auramina O and Ziehl Neelsen modified, by use of centrifugal technique - the 500Xg concentration and, application of a semi-structured survey to assess the socioeconomic and epidemiological conditions. The overall prevalence of parasitism was 30.47%, and the most frequent protozoan was Endolimax nana (12,16%) and among the helminthes were detected more frequently the hookworm (2,43%). Among the positive tests, there was verified a higher incidence of monoparasitism (23,82%) and protozoa (26,58%). It is concluded that the low prevalence for intestinal parasites in this study is due to improvements in socio-economic and epidemiological profile of the sugarcane workers and among the positive tests there was no significant difference in detection of oocysts Cryptosporidium spp. by modified Ziehl Neelsen technique and Auramina O, and the spontaneous sedimentation technique was more efficient for detection of helminth eggs in comparison to the method of Coprokit ®

ASSUNTO(S)

inquéritos epidemiológicos intestino - parasito enteropatias parasitárias trabalhadores rurais cana-de-açúcar surveys intestines intestinal diseases rural worker sugarcane

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