Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Finland.
Department of Zootechnical Science and Food Inspection, Faculty of Veterinary Medicine, University of Naples Federico II, Naples, Italy.
Epidemiol Infect. 2013 Mar;141(3):612-7. doi: 10.1017/S0950268812001239. Epub 2012 Jun 15.
Occurrence of Yersinia spp. in wild ruminants was studied and the strains were characterized to get more information on the epidemiology of enteropathogenic Yersinia in the wildlife. In total, faecal samples of 77 red deer, 60 chamois, 55 roe deer and 27 alpine ibex were collected during 3 months of the hunting season in 2011. The most frequently identified species was Y. enterocolitica found in 13%, 10%, 4% and 2% of roe deer, red deer, alpine ibex and chamois, respectively. Interestingly, one Y. enterocolitica O:3 strain, isolated from an alpine ibex, carried the important virulence genes located on the virulence plasmid (yadA and virF) and in the chromosome (ail, hreP, myfA and ystA). Most of the Y. enterocolitica strains belonged to biotype 1A of which 14 were ystB positive. Further studies are needed to clarify the importance of alpine ibex as a reservoir of pathogenic Y. enterocolitica.
本研究调查了野生反刍动物中耶尔森氏菌属的流行情况，并对菌株进行了特征分析，以获得更多关于野生动物中肠致病性耶尔森氏菌流行病学的信息。在 2011 年狩猎季节的 3 个月期间，共采集了 77 只马鹿、60 只岩羚羊、55 只狍和 27 只阿尔卑斯野山羊的粪便样本。最常鉴定到的物种是肠侵袭性耶尔森氏菌，分别在狍、马鹿、阿尔卑斯野山羊和岩羚羊中发现了 4%、10%、13%和 2%的阳性。有趣的是，从一只阿尔卑斯野山羊中分离到的一株 O:3 血清型肠侵袭性耶尔森氏菌携带位于毒力质粒（yadA 和 virF）和染色体（ail、hreP、myfA 和 ystA）上的重要毒力基因。大多数肠侵袭性耶尔森氏菌菌株属于 1A 生物型，其中 14 株为 ystB 阳性。需要进一步研究来阐明高山野山羊作为致病性肠侵袭性耶尔森氏菌的储存宿主的重要性。
