ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
Chinese Journal of Vector Biology and Control >
Seroepidemiological survey and risk factors analysis of scrub typhus in Changping district of Beijing, China
Received date: 2019-02-15
Online published: 2019-06-20
Objective To investigate the current infection status of scrub typhus and the risk factors for scrub typhus in Changping district of Beijing, China, and to provide a basis for the prevention and control strategies of scrub typhus. Methods The residents from 8 towns in Changping district were randomly selected to conduct a seroepidemiological survey from October to December, 2017. The risk factors for scrub typhus were analyzed. Independent chi-square test, stratified chi-square test, and trend chi-square test were used to analyze the infection rate between groups. Results A total of 480 serum samples were tested in this survey, of which 55 were positive for scrub typhus immunoglobulin G (IgG) antibody and the positive rate was 11.45%; there were significant differences in the positive rate between patients with different ages (χ2=57.712, P<0.001), education levels (χ2=35.257, P<0.001), and different occupations (χ2=17.222, P<0.001) and those in different regions (χ2=69.469, P<0.001). For farmers and serving officers, field work and walking or sitting on grass were risk factors for scrub typhus, respectively (odds ratio[OR]=3.03, 95% confidence interval[CI]:1.31-6.98; OR=3.18, 95%CI:1.07-9.46); spraying insect repellent and bathing or changing clothes after going out were protective factors, respectively (OR=0.45, 95%CI:0.21-0.98; OR=0.48, 95%CI:0.25-0.93). Conclusion The covert infection cases of scrub typhus are present in Changping district of Beijing, with significant population and regional differences, suggesting that it is necessary to strengthen surveillance, prevention, and control of scrub typhus and carry out further investigations.
Key words： Scrub typhus; Serological investigation; Infection rate; Risk factor
LI Sa, WANG Rui-qin, CAI Xu, JIN Wen-jun, LIU Zhong-cheng, TANG Ya-qing, TIAN Li-li . Seroepidemiological survey and risk factors analysis of scrub typhus in Changping district of Beijing, China[J]. Chinese Journal of Vector Biology and Control, 2019 , 30(3) : 248 -251 . DOI: 10.11853/j.issn.1003.8280.2019.03.004
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