%0 Journal Article %A DAI Hong %A DU Guo-yi %A GUO Chao %A HOU Zhi-lin %A KANG Dong-mei %A LAN Xiao-yu %A LIU Guan-chun %A MA Yong %A SHI Xian-ming %A SUN Fei %A WANG Xiao-yan %A YAN Dong %A YANG Ai %A YANG Shun-lin %A ZHANG Jin-yi %A ZHANG Xiao-lei %A ZHENG Nan %A ZHOU Song %A CHEN Yong-ming %T Investigation of parasitic fleas on wild rodents in Zhangjiakou competition zone of the 24th Olympic Winter Games, 2018-2021 %D 2022 %R 10.11853/j.issn.1003.8280.2022.03.019 %J Chinese Journal of Vector Biology and Control %P 414-417 %V 33 %N 3 %X Objective To investigate the changes in the number and composition of parasitic flea populations on wild rodents in the Zhangjiakou competition zone of the 24th Olympic Winter Games from 2018 to 2021, and to provide a basis for prediction and warning of rodent-borne diseases in the in Chongli district, Zhangjiakou competition zone. Methods Wild rodents were caught by the night traping method in Chongli district, Zhangjiakou city. Parasitic fleas on the rodents were collected and identified. Excel 2010 software was used to summarize the data and perform year-by-year and month-by-month analyses. A chordal graph was used to present the relationship between wild rodents and parasitic fleas. The seasonal distribution of fleas was analyzed by the concentration degree method. Results From 2018 to 2021, a total of 302 rodents were caught in Chongli district, belonging to 11 species of 9 genera under 4 families. All rodent species but Mus musculus carried fleas. A total of 218 fleas were collected, belonging to 13 species of 8 genera under 4 families. The average flea index was 0.72. The most dominant flea species was Amphipsylla vinogradovi, which had the closest relationship with Cricetulus barabensis and was also found on other seven rodent species including C. longicaudatus, Tscherskia triton, and Apodemus agrarius. Strong seasonality (all M=0.72) was observed in total, male, and female parasitic fleas on wild rodents. Conclusion Parasitic fleas on wild rodents in Zhangjiakou competition zone have large quantities, diverse species, and strong seasonality, with a close relationship with C. barabensis. Their population density and structure changes should be a warning in key areas. Attention should be paid to the trend and complications of rodent-borne disease epidemics. %U http://www.bmsw.net.cn/EN/10.11853/j.issn.1003.8280.2022.03.019