Soroprevalência da infecção pelo Vírus da hepatite B e Vírus da hepatite C em mulheres profissionais do sexo em Augusto Corrêa, Barcarena, Belém e Bragança - Pará, Brasil

Abstract

According to the World Health Organization (WHO), there are approximately 350 million people worldwide who are chronically infected with HBV and another 170 million with chronic infection by the HCV. The present this paper had the objective to estimate the incidence of the infection by the HBV and the HCV and to analyze possible risk factors among 365 female sex workers in the State of Pará: 32 participants in Augusto Corrêa, 99 in Barcarena, 175 in Belém and 59 in Bragança. Blood samples were collected and the plasmas were analyzed by means of an immunoenzymatic assay and the epidemiological characteristics were collected by the application of a epidemiological questionnaire. The results showed a prevalence of infection by the HBV of 63,6%, the HBsAg was 1,1% and the anti-HBc was 61,9%. The seroprevalence of the anti-VHC was of 7,7% and the seropositivity to HBV and HCV simultaneously was of 4,4%. Among the participants, the immunization to HBV was observed in just 4,7% and 29,0% demonstrated susceptibility for infection by HBV and HCV. There was a significant correlation among seropositivity to the viral markers of HBV with the income family, history of previous hepatitis and the use of condoms in the sexual relations. However, this difference was not observed among the epidemiological factors with the seropositivity HCV viral marker. Thus, the prevalences of infection by the HBV and the HCV in the population of female sex workers of the State of Pará indicate a pattern of intense viruses circulation in that population.