Cross Reactivity of Schistosome Antigens between Schistosoma mansoni and japonicum

Abstract
Patients (56) with chronic schistosomiasis japonica were given skin tests with preparations made of S. mansoni and S. japonicum. There was a high, significant positive correlation between the results of both antigens [Ag]. Among 47 serum samples tested with indirect hemagglutination (IHA) 27 had the antibody titer 1:16 or higher, which was diagnostically significant in combination with positive skin test results. The results indicate a definite cross reactivity of S. japonicum and S. mansoni Ag in patients with schistosomiasis japonica.

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