摘要
目的排查中国与蒙古国(中蒙)边境阿尔泰山区鼠疫自然疫源地的存在性,防止鼠疫跨境传播。方法用1日弓型夹、夹夜法采集鼠类及体外寄生物,在自毙鼠洞、洞旁、周边洞群采集鼠疫可疑材料,用鼠疫血清学检测鼠疫F1抗原、抗体,4步分离法检验鼠疫菌。结果在第一片监测点发现1具自毙长尾黄鼠并检出鼠疫F1抗原,随后分离出鼠疫菌,在其自毙鼠洞及洞旁、洞群的活体鼠中检出F1抗体4份;在第二片监测点9只林鼬中检出8份鼠疫F1抗体;在第三片监测点赤狐中检出2份鼠疫F1抗体;发现染疫鼠洞13个,鼠洞染疫率为0.97%(13/1335);捕获小兽类5科7属7种163只,鼠疫菌F1抗原、抗体阳性率为9.20%(15/163);60d内鼠疫菌检出点范围约50.5001hm^(2)。结论本次调查从中蒙边境阿尔泰山区优势种长尾黄鼠中首次分离出鼠疫菌,发现并追踪到3种鼠疫宿主在三片鼠疫新疫点的分布动态,为新的鼠疫自然疫源地的判定提供了最直接依据。
Objective Investigate the presence of natural plague foci in the Altai mountain region along the China-Mongolia border and prevent cross-border transmission of the plague.Methods Collection of rodents and ectoparasites using snap traps set overnight,and sampling of plague-suspect materials from dead rodent burrows and their surroundings.Plague serology was used to test for the F1 antigen and antibodies of the plague,and a four-step isolation method was used to examine the conolusion.ResultsA Citellus undulatus was found at the first monitoring site,where the plague Fl antigen was detected and the Yersinia pestis was subsequently isolated.Fl antibodies were detected in four live rats from the same burrow and surrounding area;eight out of nine Mustela putorius at the second monitoring site tested positive for the plague Fl antibody;two plague F1 antibodies were detected in Vulpes vulpes at the third site;thirteen infected burrows were found,with an infection rate of 0.97%(13/1335);163 small mammals of 7 species from 5 families were captured,with a positive rate of 9.20%(15/163)for the plague bacterium Fl antigen and antibodies;within 60 days,the range of plague bacteria detection was approximately 50.5001 hm^(2).Conclusion This survey isolated the Conclusion Yersinia pestis for the first time from the dominant species,the Citellus undulatus,in the Altai mountain region on the China-Mongolia border.It identified and tracked the distribution dynamics of three plague host species across three new plague foci,providing direct evidence for the determination of a new natural plague focus.
作者
刘戈
尹小平
田锋
张晖
白岑
赵伟荣
王卫红
尹达
刘泽旭
张晖
周林福
王信惠
党文起
LIU Ge;YIN Xiaoping;TIAN Feng;ZHANG Hui;BAI Cen;ZHAO Weirong;WANG Weihong;YIN Da;LIU Zexu;ZHANG Hui;ZHOU Linfu;WANG Xinhui;DANG Wenqi(Urumqi Customs,Urumqi,Xinjiang 830000,China;不详)
出处
《中国地方病防治》
CAS
2024年第1期12-15,共4页
Chinese Journal of Control of Endemic Diseases
基金
国家重点研发专项(2021YFC2301200)
海关总署科技基金项目(2016IK264)。
关键词
长尾黄鼠
鼠疫菌
鼠疫自然疫源地
中蒙边境
阿尔泰山区
Citellus undulatus
Yersinia pestis
Natural plague foci
China-Mongolia border
Altai mountain region
