Pathogenic Yersinia enterocolitica O:3 isolated from a hunted wild alpine ibex.
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.
Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Finland.
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S
Joutsen
Department of Zootechnical Science and Food Inspection, Faculty of Veterinary Medicine, University of Naples Federico II, Naples, Italy.
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E
Sarno
Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Finland.
M
M
Fredriksson-Ahomaa
Institute for Food Safety and Hygiene, Vetsuisse Faculty University of Zurich, Zurich, Switzerland.
N
N
Cernela
Institute for Food Safety and Hygiene, Vetsuisse Faculty University of Zurich, Zurich, Switzerland.
R
R
Stephan
D018829:Adhesins, Bacterial / Q000235:genetics; D000818:Animals; D000942:Antigens, Bacterial / Q000235:genetics; D001425:Bacterial Outer Membrane Proteins / Q000235:genetics; D001426:Bacterial Proteins / Q000235:genetics*; D001427:Bacterial Toxins / Q000235:genetics; D015373:Bacterial Typing Techniques; D003670:Deer; D004197:Disease Reservoirs; D004768:Enterotoxins / Q000235:genetics; D005243:Feces / Q000382:microbiology*; D005838:Genotype; D006041:Goats; D008826:Microbial Sensitivity Tests; D010957:Plasmids / Q000235:genetics*; D048608:Rupicapra; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013381:Subtilisins / Q000235:genetics; D013557:Switzerland; D014774:Virulence / Q000235:genetics; D015009:Yersinia Infections / Q000382:microbiology; D015008:Yersinia enterocolitica / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification / Q000472:pathogenicity*
D018829:Adhesins, Bacterial; C069712:Ail protein, Yersinia enterocolitica; D000942:Antigens, Bacterial; D001425:Bacterial Outer Membrane Proteins; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004768:Enterotoxins; C093279:MyfA protein, Yersinia; C064832:YadA protein, Yersinia; C048669:heat-stable enterotoxin (Yersinia); C430046:HreP protein, Yersinia enterocolitica; D013381:Subtilisins