Epidemiological characteristics and host animal monitoring results of hemorrhagic fever with renal syndrome in Jingzhou city of Hubei province,2017-2023
Objective To analyze the epidemiological characteristics of hemorrhagic fever with renal syndrome(HFRS)as well as host animal surveillance in Jingzhou City from 2017 to 2023,so as to provide evidence for the prevention and control of HFRS in Jingzhou City.Methods HFRS case data were collected through the Chinese Disease Control and Prevention Information Management System and analyzed by descriptive epidemiological methods.Rat density monitoring started in the spring of 2017,and the host animal survey was conducted in eight counties of Jingzhou City in spring(April-May)and fall(September-October)every year with rat traps which were deployed by the clip and night method.Lung samples of captured rats were collected and sent to the Hubei Provincial Center for Disease Control and Prevention(CDC)for testing of Hantavirus.Results The cumulative number of HFRS cases reported in Jingzhou City from 2017 to 2023 was 1112,with an average annual reported incidence rate of 2.91/105.The incidence rate started to showing a fluctuating upward trend from 2017(2.18/105),peaked in 2020(5.67/105),then declined year bv year,and reached to the lowest in 2023(0.71/105).The ratio of male to female cases was 2.60:1;the ages of the cases were mainly concentrated in the group of 40-＜75 years old,accounting for 82.82％(921/1 112);farmers accounted for 73.47％(817/1 112)of the total cases.Seasonal distribution showed one large peak and one small peak,which occurred between May-July and between November-January,respectively.The three regions with the highest annual reported incidence were Jiangling County(8.18/105),Gongan County(4.63/105)and Jianli City(3.69/105).The rat density in Jingzhou City from 2017 to 2023 was 4.04％(1 680/41 612),and the rate of virus carrying in the rats was 8.59％(96/1 118).There was no significant correlation between the incidence of HFRS and rodent density and the rate of virus carrying in the rats each year(r=0.335 and-0.038,respectively;both P＞0.05).Conclusions From 2017 to 2023,HFRS incidence in Jingzhou City first increased and then decreased.The monitoring of host animals needs to be further improved and strengthened.The focus of prevention and control is to carry out comprehensive measures such as rat prevention and control,vaccination and health education for key populations in high-incidence areas during the high-incidence season.
Hemorrhagic fever with renal syndromeHost animal monitoringRat densityVirus carrying rateJingzhou City
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万方数据
