RESUMO
Immuno-blot was used in diagnosis of schistosomiasis japonica using diagnostic 31/32 KD proteins in S.japonicum Among 52 confirmed schistosemiasis cases 100% showed positive reaction while none of the sera of 20 normal control reacted. No cross reactions occured with sera from 36 paragonimiasis; 26 cysticercosis and 50 trichinelliasis cases. However, 11.5-58.3%cross reactions were found with above sera in IHA and ELISA. The diagnostic value of immuno-blot and 31/32 kD schistosome proteins were confirmed.A field application of immuno-blot in diagnosis of schistosomiasis japonica was performed. The positive rates in immuno-blot and IHA were 58.1% and 54.4% respectively in 136 cohorts with and without past history of schistosomiasis in the endemic area. It was found that immuno-blot was highly sensitive, specific and reproducible.It was easy to perform and suitable for field use.
RESUMO
Objective To understand the moving patterns of Oncomelania snails, intermediate host of S.japonicum, in the water bodies. . Methods. Based on the biological features of the snails, methods and techniques in relation to hydraulics and silt engineering were adopted to investigate the active scrawl ability and passive movement of the snails. . Results and Conclusion . The scrawl speed of the snails themselves was very low, 2.