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目的探讨山丘地区感染性钉螺分布与急性血吸虫病(急血)流行的关系。方法收集并分析1999-2008年安徽省石台县历年感染性钉螺分布和急血发病资料。结果所确诊的48例急血病例中,在距感染性螺点30m以内感染发病13例,50m内感染发病11例,100m内感染发病10例,150m内感染发病6例,200m内感染发病4例,提示距离感染性螺点越近,急性血吸虫感染发生率越高。结论山丘地区急性血吸虫感染与距感染性螺点的距离有关。对重点区域强化灭螺措施,加强对重点暴露人群的防护力度,加强重点人群血防健康教育是控制山丘地区急血流行的重要措施。
Objective To investigate the relationship between infectious snail distribution and the prevalence of acute schistosomiasis in mountainous areas. Methods The data of infectious snail distribution and incidence of acute episode of bloodstream from 1999 to 2008 in Shitai County of Anhui Province were collected and analyzed. Results Among the 48 cases of acute bloodletting diagnosed, there were 13 cases of infection within 30m from the infected snails, 11 cases of infection within 50m, 10 cases of infection within 100m, 6 cases of infection within 150m and 4 cases of infection within 200m 4 For example, the closer the distance from the infective snail, the higher the incidence of acute schistosome infection. Conclusion The infection rate of acute schistosomiasis in the hill area is related to the distance from the infectious spiral spot. It is an important measure to intensify the snail control measures in key areas to strengthen the protection of key exposed populations and to strengthen the blood-shelter health education of key populations.