Human cystic echinococcosis in the West Bank of Palestine: surgical incidence and seroepidemiological study
2002
Abu-Hasan, N. | Daragmeh, M. | Adwan, K. | Al-Qaoud, K. | Abdel-Hafez, S.
The surgical incidence of cystic echinococcosis (CE) due to Echinococcus granulosus was investigated in hospitals of the West Bank, Palestinian Authority between January 1990 and December 1997. Serum samples from school-children in Yata town, which showed the highest surgical incidence, were tested for anti-hydatid antibodies. A total of 390 surgically confirmed cases were recorded throughout the 8-year period, with an overall mean annual surgical incidence (MASI) of 3.1 per 100,000. A high MASI of 4.9, 5.0 and 5.1 per 100,000 was found in Hebron, Jericho and Bethlehem Governorates, respectively. Yata town, Hebron governorate, showed the highest MASI, at 16.8 per 100,000. The highest incidence was found in age groups 11–20 and 21–30 years, at 27.4% and 21.5% of the total number of cases. While there was no significant gender difference in the number of cases in the age groups of 20 years or less, the male to female case ratio was 1:3.2–4.1 in the older age groups. The liver was the most common site of hydatid cysts in 69.9% of cases. Lung cysts were predominant in younger age groups (20 years or less). The seropositivity for CE in the school-children of Yata was 2.4% and 2.1% using enzyme-linked immunosorbent assay and the indirect haemagglutination test, respectively. CE is a significant endemic disease throughout the West Bank. The disease is acquired early in life and is more prevalent among females than males. Behaviour and life-style favour the spread of the disease.
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