为了解遵义市伤寒发病是否存在季节性变化 ,现将19 80～ 1997年间的伤寒分月发病情况进行统计整理分析如下 :1　资料来源根据历年各医院上报及遵义市卫生防疫站查漏收取的传染病报告资料 ,于每年年终汇审出各月发病资料。2　结果2 .1　年发病情况统计　 1980～ 1997年 ,伤寒在 In order to understand whether there is a seasonal change in the incidence of typhoid fever in Zunyi City, the incidence of typhoid fever in the period from 1980 to 1997 is statistically analyzed and analyzed as follows: 1 Source According to reports from hospitals and Zunyi Health and Epidemic Prevention Station over the years, Disease information, at the end of each year to review the incidence of each month information. 2 results 2.1 annual incidence statistics 1980 to 1997, typhoid fever in