Ecological characteristics of Oncomelaniahupensis and water conservancy combined with schistosomiasis prevention and control / 中国血吸虫病防治杂志

The control of water conservancy ecosystem for Oncomelaniahupensissnails and water conservancy combined with schistosomiasis prevention and control are an important part of the comprehensive control of schistosomiasis in China. It has played an important role in the prevention and control of schistosomiasis in a long-term. The technique regulation for water con-servancy combined with schistosomiasis prevention has nearly 30 years’development gradually and formed a series of technical specification. Its theoretical basis is associated with the water ecology and hydraulics of snails. This paper mainly reviews the soil, grass, water, light and others related to ecological elements of the snails, and the water conservancy ecological control technique of snails and the current water conservancy measurements combined with schistosomiasis prevention and control in the field of schistosomiasis prevention and control, and puts forward the proposals for the water conservancy combined with schistosomiasis prevention and control technology development in the future. The water conservancy combined with schistosomiasis prevention and control should have further development in the new situation in order to play a more important role for schistosomiasis elimination in China.

Ecological control of Triatoma dimidiata (Latreille, 1811): five years after a Costa Rican pilot project

An ecological pilot project for the control of Triatoma dimidiata allowed a new evaluation four and five years after environmental modifications in the peridomestic areas of 20 households. It was verified that the two groups of houses, 10 case-houses and 10 control-houses, were free of insects after those periods of time. In the first group, the owners started a chicken coop in the backyard and a colony of bugs was found there without infesting the house. In the second group, the inhabitants of one house once again facilitated the conditions for the bugs to thrive in the same store room, reaffirming that man-made ecotopes facilitates colonization. This ecological control method was revealed to be reliable and sustainable and it is recommended to be applied to those situations where the vectors of Chagas disease can colonize houses and are frequent in wild ecotopes.