Objective To analyze the epidemiological characteristics of hemorrhagic fever with renal syndrome (HFRS) in Zhangjiakou, Hebei province, China, 2011-2021, and to provide a scientific basis for HFRS prevention and control. Methods Descriptive epidemiological methods were used to analyze the monitoring data of HFRS cases and host animals in Zhangjiakou from 2011 to 2021. Results A total of 162 HFRS cases were reported in Zhangjiakou from 2011 to 2021, with an average annual incidence rate of 0.29/100 000 and an average mortality rate of 0.005/100 000. Cases were reported in every month of the year, and the incidence peaked from April to June. The male-female ratio of the patients was 3.26:1, and the disease mainly affected people 20-60 years of age and farmers (95 cases, 58.64%). The reported cases of HFRS were concentrated in Xuanhua district and Chicheng county (52.47%). Exposure factors were identified in 90 cases (55.56%). From 2013 to 2017, the annual rodent density was high and averaged at 3.65 individuals/100 traps. One of the 436 rodent samples tested positive, with an infection rate of 0.23%. Conclusion From 2011 to 2021, the HFRS epidemic in Zhangjiakou increased slightly but was generally low. In areas with high HFRS incidence, it is necessary to actively monitor rodent infection rate, and at the same time implement the strategy based on both rodent control and vaccination to reduce the incidence of HFRS.
SUN Fei, YANG Ai, WANG Yi, ZHANG Xiao-lei, YAN Dong
. Epidemiological characteristics of hemorrhagic fever with renal syndrome in Zhangjiakou, Hebei province, China, 2011-2021[J]. Chinese Journal of Vector Biology and Control, 2022
, 33(3)
: 383
-386
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DOI: 10.11853/j.issn.1003.8280.2022.03.013
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