[Surveillance and risk assessment system of schistosomiasis epidemic focus in Hankou marshland of Wuhan City].

Objective: To construct a monitoring and risk assessment system of schistosomiasis epidemic focus in marshland, so as to grasp the risk of schistosomiasis transmission, and to provide the technical support for targeted prevention and control measures.

Methods: The crowd and the risk source of schistosomiasis in Hankou marshland in Wuhan City were monitored to grasp the risk factors of schistosomiasis. The risk level was evaluated by the three-dimensional risk matrix and three-dimensional visualization method.

[Practice of engineering management and its effect on schistosomiasis control in Hankou marshland, Wuhan City].

Objective: To investigate the snail control effect of schistosomiasis control engineering in marshland within Wuhan City.

Methods: The engineering measures including surface barrier removal, molluscicide, flatting surface, topsoil stripping, topsoil covering and ditch renovation were applied to transform Hankou marshland. Then the corresponding technical parameters of engineering measures were put forward.