Prevalence of Schistosoma mansoni and It’s association with hepatitis B in Gummuiya Agricultural Scheme

Abstract

The cross sectional study was conducted to determine the prevalence of Schistosoma mansoni infection and it’s association with hepatitis B infection in residents of the Gummuiya scheme in the suburbs of Omdurman . Faecal and urine samples from 225individuals in the village of Baraka in Gummuiya Agricultural Scheme were examined for S.mansoni and S.haematobium eggs using modified Kato thick smear and tube centrifugation techniques . The prevalence of of S.mansoniwas found to be (25.3%). A serosurvey of 128 subjects for hepatitis B surface antigen (HBsAg) was conducted.These subjects comprise 46 bilharzia patients ,38negative controls from the study area and 44 negative controls from Khartoum The sero-positivity of (HBsAg) in these groups was 30.4% ,7.8% and 11.3% respectively . The difference in the positivity was statistically significant.(chi –square = 6.55,=P ‹0.05 =0.01049). This result is indicative of the existence of an association between S.mansoni and hepatitis infection. The reasons underlying this association were uncertain but the immune stastus of the infected person seems to be the main reason.