Objective To analyze the epidemiological characteristics of animal plague in the Meriones unguiculatus plague foci of the Inner Mongolia Autonomous Region (IMAR), China, so as to provide a scientific basis for plague prevention and control strategies.Methods Descriptive epidemiological methods were used to analyze the surveillance data on the density of M. unguiculatus, the number of vectors, etiology, and serology of M. unguiculatus in the plague foci of IMAR from 2018 to 2022.Results In the M. unguiculatus plague foci of IMAR from 2018 to 2022, the mean density of M. unguiculatus was 2.45 individuals/hm2, the flea infestation rate of M. unguiculatus was 23.96%, and the flea index was 0.62. Yersinia pestis was isolated for five consecutive years. The Y. pestis detection rate of animals was 0.39%. The Y. pestis detection rate of vectors was 0.29%. The serological positive rate by indirect hemagglutination assay was 0.21%.Conclusions Plague was active in the M. unguiculatus plague foci of IMAR from 2018 to 2022. Routine surveillance should be strengthened to timely detect and control animal plague, so as to effectively reduce the intensity of animal plague and the risk of human plague.
HAN Bing, LIU Hui-jie, ZHANG Da-yu, FENG Yi-lan, LI Jian-yun, ZHANG Zhong-bing
. An epidemiological survey of animal plague in Meriones unguiculatus plague foci of Inner Mongolia Autonomous Region, China, 2018-2022[J]. Chinese Journal of Vector Biology and Control, 2023
, 34(5)
: 697
-702
.
DOI: 10.11853/j.issn.1003.8280.2023.05.020
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