Abstract
A rapid and simple counterimmunoelectrophoresis (CIEP) on a cellulose acetate membrane with antigen that elicits an arc-5 precipitin line in immunoelectrophoresis (IEP) is sensitive for the diagnosis of cystic hydatid disease (CHD). Specificity was proven by assaying the sera of patients with amoebiasis, schistosomiasis, filariasis, infections due to a variety of soil-transmitted nematodes and Taenia solium cysticercosis. Other sera analysed were from healthy controls, and patients with malignancies and conditions in which a space-occupying mass or lesion was presumed to be a hydatid cyst on ultrasound (US) and/or computerized tomography (CT). Compared to the indirect haemagglutination (IHA) test, the CIEP was almost 100% specific.
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