[Effect of schistosomiasis control in Yangxin County, Hubei Province, 2004-2015].

Objective: To evaluate the effect of schistosomiasis control and prevention in Yangxin County from 2004 to 2015, so as to provide the evidence for improving the work of schistosomiasis transmission interrupted and elimination in the future.

Methods: According to the endemic types and endemic regularity of schistosomiasis in Yangxin County, the comprehensive control strategies were adopted, and the programs related to sanitation, water conservancy, forestry, and agriculture were implemented continuously. The schistosomiasis control effects in this county from 2004 to 2015 were analyzed and compared.

[Molluscicidal effects of 3 molluscicides by spraying and poudrage methods in dry season].

Objective: To evaluate the effects of 3 molluscicides namely 5% niclosamide ethanolamine granules, 4% "Luowei" (Tea-seed distilled saponins, TDS) and 50% wettable powder of niclosamide ethanolamine salt (WPN) by spraying and poudrage methods in marshland and lake regions in dry season.

Methods: An environment with a high snail density was chosen as the experimental field, then the spraying and poudrage experiments were carried out in the field to assess the molluscicidal effects of 5% niclosamide ethanolamine granules, TDS and WPN delivered by spraying and poudrage methods with a concentration of 30, 6 and 2 g/m2, respectively, and the molluscicidal effects of the 3 drugs by the two methods were evaluated and compared in different time.

Results: After the delivery for 15 d, the adjusted snail death rates of the 5% niclosamide ethanolamine granules, TDS and WPN in the spraying experiment were 79.

[Longitudinal analysis of endemic situation of schistosomiasis in Fu River system in Yangxin County, 2003-2012].

Objective: To understand the endemic situation and control effect of schistosomiasis in the Fu River system in Yangxin County in recent 10 years.

Methods: The data of endemic situation and control of schistosomiasis in this area from 2003 to 2012 were collected, and the variation trends of morbidity and snail situation were analyzed longitudinally.

Results: Compared to 2003, the infection rates of human and cattle decreased by 97.

[Effect of comprehensive control of schistosomiasis in Yangxin County, Hubei Province].

Since 2005, the project of comprehensive control of schistosomiasis has been implemented in Yangxin County. In 2010, the infection rates of residents and domestic animals were both below 2%, comparing to 2004, the rates decreased by 92.42% and 92.

[Questionnaire survey on replacing bovine with machine in Yangxin County].

A total of 405 households keeping cattle were surveyed by questionnaire in Yangxin County in 2008, the results showed that 215 of them (53.09%) were willing to replace cattle, 288 of them (71.11%) preferred to economic compensation, and 117 of them asked for compensation with machine.