Objective To analyze the epidemiological characteristics of typhus fever in Jinzhai County, Anhui Province, China in recent ten years, so as to provide a basis for scientific control of typhus fever.Methods The descriptive epidemiological method was used to systematically analyze the characteristics of the surveillance data on cases of typhus fever in Jinzhai County from 2013 to 2022 collected from the China Information System for Disease Control and Prevention. Qualitative data were described as rates or constituent ratios, and analyzed using the Chi-squared test.Results From 2013 to 2022, 426 cases of typhus fever were reported in Jinzhai County, with a mean annual incidence of 8.23/100 000, and no deaths were reported. The incidence peak occurred between April and September (spring and summer), during which the number of cases accounted for 85.68% (365/426) of the total number of cases reported. The incidence of typhus fever was significantly higher among women than among men (χ2=30.878, P<0.001), and the male-to-female ratio was about 0.62:1. The incidence of typhus fever was highest in the age group of 60-<70 years (256.67/100 000). A vast majority of cases were farmers among occupations (93.90%). Cases were reported in 22 of 23 townships.Conclusions Cases of typhus fever were widely reported across Jinzhai County, predominantly affecting farmers and middle-aged and elderly people, with significant sex difference and seasonality. Therefore, typhus fever surveillance, prevention, and control should be strengthened for high-incidence areas and high-risk populations.
DING Jun-fei, GUAN Peng-cheng, LI Wei
. Epidemiological characteristics of typhus fever in Jinzhai County, Anhui Province, China, 2013-2022[J]. Chinese Journal of Vector Biology and Control, 2023
, 34(6)
: 767
-771
.
DOI: 10.11853/j.issn.1003.8280.2023.06.011
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