Schistosomiasis is a chronic and debilitating parasitic disease that has often been neglected because it is a disease of poverty, affecting poor rural communities in the developing world. This is not the case in the People's Republic of China (PRC), where the disease, caused by Schistosoma japonicum, has long captured the attention of the Chinese authorities who have, over the past 50-60 years,...

In the previous report (Yanagisawa et al., 1961) respiratory metabolism especially oxygen uptake of Oncomelania nosophora, an intermediate snail host of Schistosoma japonicum and effects of starvation upon it were investigated as the first step to lay a foundation toward the practice in the chemical control of this snail. Data obtained from the study on the effect of starvation revealed the gra...

Schistosoma japonicum, the only schistosome species in the Philippines, was first described in 1906 among patients at the Philippines General Hospital and among inmates of a Manila prison [1]. In 1937, Onchomelania quadrasi was identified as the intermediate host of S. japonicum in the Philippines, and mapping projects to locate transmission sites commenced. Such studies revealed that schistoso...

The snail’s specie, Oncomelania quadrasi, is found abundantly in fresh water fish ponds of Punjab. It is an intermediate carrier / host of various digenetic trematode parasites which causes many serious fish diseases in aquaculture ponds. The purpose of this study was targeted for controlling these snails in aquatic environments through chemical control strategies using copper sulfate as an era...