关键词: 斑疹伤寒, 圆形分布法, 流行特征

Abstract:

Objective To analyze the epidemiological characteristics of typhus in Henan province from 2004 to 2010, in order to provide evidence for developing typhus prevention and control strategies. Methods Descriptive epidemiological method and circular distribution method were used to analyze the surveillance data of typhus in Henan province from 2004 to 2010. Results In all 172 cases were reported from 2004 to 2010. The cumulative incidence rate was 0.1822 per 10⁵. The lowest and highest incidence rates were 0.0116 per 10⁵ in 2010 and 0.0385 per 10⁵ in 2008, respectively. There were significant differences for the incidence of typhus among different years (χ²＝17.71, P＜0.05). The cases were mainly sporadic. There were no outbreaks and deaths. Most cases were distributed in central and northern areas of Henan province. The peak epidemic period was from July to September. Most cases were farmers and students. Conclusion The cases of typhus in Henan were mainly sporadic. Comprehensive prevention and control measures such as killing mice, fleas, lice, improving environmental health and monitoring host animals should be taken to control typhus effectively.

Key words: Typhus, Circular distribution method, Epidemic characteristics