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目的了解湖北省间日疟(plasmodium vivax,p.v.)流行区间日疟发病与传疟媒介按蚊的关系,为防止输入性疟疾引起二代病例及消除疟疾验证工作提供依据。方法收集湖北省2005-2009年5个疟疾监测点疟疾疫情和蚊媒监测的历史资料,按月统计间日疟发病数和蚊媒密度,采用圆形分布法进行分析。结果湖北省2005-2009年间日疟发病高峰日、高峰期和流行期分别为7月28日、5月26日~9月28和3月27日~11月28日,高峰期和流行期天数分别为126 d和246 d;媒介按蚊活动的高峰日、高峰期和传播期分别为7月30日、6月2日~8月29日和5月1日~10月26日,高峰期和传播期天数分别为90 d和176 d。蚊媒密度平均角单独检验有统计学意义(F=14.84,P<0.001);各年间日疟发病平均角比较,差异有统计学意义(F=1.59,P<0.001)。结论湖北省间日疟发病及媒介按蚊活动均存在明显的季节性高峰;由于受环境改变,气候变化,生产生活方式变化,间日疟发病季节性与蚊煤季节性特征一致性比早期研究差异较大。
Objective To understand the relationship between Plasmodium vivax (p.v.) Prevalence and malaria transmission in Malaria and to provide basis for preventing the second generation case of imported malaria and eliminating malaria. Methods The historical data of malaria and mosquito vectors in five malaria surveillance sites in Hubei Province from 2005 to 2009 were collected. The incidence of mosquito and the mosquito density were calculated by monthly statistics, and the circular distribution method was used to analyze the data. Results The peak day, the peak period and the epidemic period of P.vivax in Hubei Province during 2005-2009 were July 28, May 26-September 28 and March 27-November 28, respectively. The peak and prevalence days Respectively 126 days and 246 days. The peak, peak and propagation periods of Anopheles vectors were July 30, June 2-August 29 and May 1-October 26, respectively. The peak period And days of transmission were 90 d and 176 d, respectively. The average angle of mosquito media density was statistically significant (F = 14.84, P <0.001). The average angle of incidence of Vivax in each year was significantly different (F = 1.59, P <0.001). Conclusions There is a clear seasonal peak in both P. vivax and Anopheles mosquitoes in Hubei Province. Due to the changes in environment, climate change, changes in production and lifestyle, the seasonal characteristics of P. vivax and mosquito coherence are more consistent than the earlier studies big different.