Strategy and effect of Oncomelania hupensis snail control in inside-embank-ment areas in Junshan District ,Hunan Province from 1998 to 2017
10.16250/j.32.1374.2017104
- VernacularTitle:湖南省君山区垸内钉螺控制措施及其效果
- Author:
ming Sheng LI
1
;
Gui Shi LI
;
hui Guang REN
;
Jie ZHOU
;
jiao Ben HU
;
Lin TANG
;
lan Hui WANG
;
xiang Hui LIU
;
Zhong HE
Author Information
1. 湖南省血吸虫病防治所、WHO湖区血吸虫病防治研究合作中心 岳阳414000
- Keywords:
Schistosomiasis;
Oncomelania hupensis snail control;
Measure;
Effect;
Inside-embankment;
Junshan District
- From:
Chinese Journal of Schistosomiasis Control
2017;29(5):550-553
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the strategy and countermeasures of Oncomelania hupensis snail control and evaluate the effect in inside-embankment areas of lake-type schistosomiasis endemic area,for providing the effective method for controlling and interrupting the schistosomiasis transmission. Methods The data of schistosomiasis epidemic and its control and preven-tion were collected in Junshan District,Hunan Province,and the effect of snail control countermeasures were evaluated and the trend of indexes of snails was drafted in the inside-embankment areas of Junshan District,Hunan Province from 1998 to 2007. Results The area with snails in the inside embankment areas of Junshan District decreased by 98.43%,from 1496.66 hm2 in 1998 to 23.48 hm2 in 2017. The occurrence rate and average density of of living snails decreased from 20.61%and 0.45 snail/0.1 m2 in 2003 to 2.06%and 0.03 snail/0.1 m2 in 2017. The highest area with schistosome infected snails was found in 2001 and the total area was 79.36 hm2,however,no infected snails were found since 2007. The total fiscal investment for schistosomiasis pre-vention and control was 398.857 million RMB in Junshan District,including molluscicide(81.7709 million RMB)and environ-ment reform(213.5 million RMB)respectively. Conclusion The comprehensive measures,mainly including the combination of molluscicide and environment reform have gotten a significant effect in snail control and elimination in the inside-embankment areas,but the snail surveillance still need to be strengthened in the historic areas with snails.
