Analysis of Oncomelania hupensis snail situation in schistosomiasis surveil-lance sites in Hubei Province from 2009 to 2014
10.16250/j.32.1374.2015239
- VernacularTitle:2009-2014年湖北省血吸虫病监测点螺情分析
- Author:
Xiaowei SHAN
;
Shunxiang CAI
;
Xiaorong ZHOU
;
Yanyan CHEN
;
Zhengming SU
;
Juan ZHANG
;
Jianbing LIU
- Publication Type:Journal Article
- Keywords:
Schistosomiasis;
Oncomelania hupensis;
Snail situation;
Surveillance;
Hubei Province
- From:
Chinese Journal of Schistosomiasis Control
2016;28(3):234-236,280
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the Oncomelania hupensis snail situation in schistosomiasis surveillance sites in Hubei Province from 2009 to 2014. Methods From 2009 to 2014,207 schistosomiasis endemic villages from 13 cities were selected as the surveillance sites in Hubei Province,where the surveillance of snail situation was performed,and the data about the in?dexes of snail situation during the 6 years were collected and analyzed statistically. Results From 2009 to 2014,totally 80 963.47 hm2 of snail areas were investigated,and 45 309.77 hm2 of area with snails as well as 364.93 hm2 of area with infected snails were found out,and 1 646 125 snails were captured. In the 207 surveillance sites,the density of living snails was reduced from 0.493 3 snail/0.1 m2 in 2009 to 0.339 3 snail/0.1 m2 in 2014,with a decline rate of 31.22%;the density of infected snails was reduced from 0.000 7 snail/0.1 m2 in 2009 to 0 in 2014;the infection rate of snails was reduced from 0.14%in 2009 to 0 in 2014. The infection rates of snails in the third?rank villages,endemic areas in inner embankment,ditch environment and weed environment were relatively higher. Conclusions The snail situation of Hubei Province has been declined steadily. However, the environment of snail breeding has not been changed completely. In order to consolidate the control achievements further ,the measures including mollusciciding and snail control projects should be strengthened.
