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目的探讨广州市2006-2012年恙虫病发生季节分布特征,为防控措施的制定提供科学依据。方法应用集中度法和圆形分布法对广州市2006-2012年恙虫病疫情资料进行处理和分析。结果 2006-2012年广州市恙虫病发病呈上升趋势,且发病有明显的季节性,集中度M=0.51,圆形分布r=0.50,平均角珔a=216.11°,即广州市恙虫病流行的高峰日为8月8日,流行时间为6月上旬到10月中旬。结论广州市恙虫病发病率总体呈上升趋势且呈现较为明显的季节高峰,集中度和圆形分布的指标可以较为准确的反映广州恙虫病的流行高峰及流行时间。
Objective To investigate the seasonal distribution of tsutsugamushi disease in Guangzhou from 2006 to 2012 and provide a scientific basis for the development of prevention and control measures. Methods Concentration and circular distribution methods were used to analyze and analyze the data of tsutsugamushi disease in Guangzhou from 2006 to 2012. Results The incidence of tsutsugamushi disease in Guangzhou increased from 2006 to 2012, and the incidence was obviously seasonal with the concentration of M = 0.51, round distribution r = 0.50 and average angle 珔 a = 216.11 °, The peak day is August 8, the popular time is from early June to mid-October. Conclusions The incidence of scrub typhus in Guangzhou shows an overall upward trend and shows a clear seasonal peak. The indicators of concentration and circular distribution can accurately reflect the epidemic peak and prevalence of scrub typhus in Guangzhou.