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目的探讨我国钩端螺旋体病(简称钩体病)发病的季节性规律,为钩体病的防控工作提供科学依据。方法利用集中度和圆形分布法,对2011-2014年我国钩体病的季节性特点进行分析。结果我国钩体病发病的集中度M=0.736,通过圆形分布法分析,发现2011-2014年钩体病发病的高峰日为10月6日,高峰期为8月1日-12月11日;经平均角的Rayleigh’s检验得Z=494.012,P<0.001,发病高峰日的95%可信区间为10月3日-10月10日;对4年发病的平均角比较采用Watson-William检验法,得Z=36.09,P<0.01。结论我国钩体病的发病有很强的季节性特征,8-12月为发病高峰期,应在该段时间内加强对钩体病的防控。
Objective To investigate the seasonal pattern of Leptospirosis (Leptospirosis) in China and provide a scientific basis for the prevention and control of leptospirosis. Methods Using the concentration and circular distribution method, the seasonal characteristics of leptospirosis in China from 2011 to 2014 were analyzed. Results The incidence of leptospirosis in China was M = 0.736. According to the circular distribution analysis, the peak day of leptospirosis in 2011-2014 was October 6 and the peak was August 1-December 11 ; The average angle of Rayleigh’s test Z = 494.012, P <0.001 95% confidence interval peak incidence on October 3 to October 10; the average incidence of 4-year incidence of Watson-William test , Z = 36.09, P <0.01. Conclusions The incidence of leptospirosis in our country has strong seasonal characteristics. From August to December, it is the peak of the disease. It should strengthen the prevention and control of leptospirosis during this period.