Investigation and analysis of pathogenic yersinia in plague host animals in the Spermonphilus alaschanicus plague foci of Gansu Province
XU Da-qin1, XI Jing-xiao1, DUAN Ran2, JING Huai-qi2, CHUN Hua3, HUANG Yan-yan3, WANG Li4, ZHANG Chen4, RONG Bin-guo5, ZHAN Dong-hui6, FENG Jia-gui7, SHI Zhang-wen8, AN Jun-sheng7
1. Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China; 2. National Institute of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China; 3. Subei Provincial Center for Disease Control and Prevention, Subei 736300, China; 4. Jiuquan Provincial Center for Disease Control and Prevention, Jiuquan 735000, China; 5. ZhangyeProvincial Center for Disease Control and Prevention, Zhangye 734000, China; 6. Sunan Provincial Center for Disease Control and Prevention, Sunan 734400, China; 7. Huining 601 Station, Huining 730700, China; 8. Pingchuan District Center for Disease Control and Prevention,Pingchuan 730913, China
Abstract：This study aimed to understand the status of Yersinia pestis infection in host animals in the plague foci of Spermonphilus alaschanicus in Gansu and to provide a basis for exploring the epidemic status of plague in these foci. Samples of the ileocecal region and contents, pharyngeal swabs or tongue roots, and serum samples from plague host animals in Huining and Pingchuan during the 1960s and 1970s were collected on site from 2016 to 2018. A total of 274 specimens from the tongue base in six species of mice were collected in Huining County, and 275 specimens from the ileocecal region and contents were collected. One non-pathogenic strain of Yersinia enterotidis was detected, and its virulence type was ail- ystA- ystB+ yadA- virF- rfbc-, with a detection rate of 0.18%. A total of 213 tongue base specimens from eight species of rodents were collected in Pingchuan district. No yersinia was detected in 219 ileocecal and content specimens. A total of 312 serum samples of Alxa yellow squirrel serum samples were collected. The plague F1 antibody results were negative. Yersinia may exist in the intestines of the main host animals in the source areas of bubonic plague in Gansu, and the sites with detected Yersinia enterocolitis are consistent with those in which Yersinia pestis was detected in the 1960s and 1970s.
徐大琴, 席进孝, 段然, 景怀琦, 春花, 黄燕妍, 王利, 张晨, 戎宾国, 展东辉, 冯甲贵, 师占文, 安君胜. 甘肃黄鼠疫源地鼠疫宿主动物致病性耶尔森菌调查分析[J]. 中国人兽共患病学报, 2021, 37(7): 664-667.
XU Da-qin, XI Jing-xiao, DUAN Ran, JING Huai-qi, CHUN Hua, HUANG Yan-yan, WANG Li, ZHANG Chen, RONG Bin-guo, ZHAN Dong-hui, FENG Jia-gui, SHI Zhang-wen, AN Jun-sheng. Investigation and analysis of pathogenic yersinia in plague host animals in the Spermonphilus alaschanicus plague foci of Gansu Province. Chinese Journal of Zoonoses, 2021, 37(7): 664-667.
2021, Vol. 37 
