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Journal of Wildlife Diseases, 44(3), 2008, pp. 697-700
© Wildlife Disease Association  2008
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SHORT COMMUNICATION

Detection of Gastric Helicobacter Species in Free-ranging Lynx (Lynx lynx) and Red Foxes (Vulpes vulpes) in Sweden

 Torsten Mörner1, Caroline Bröjer1, Marie-Pierre Ryser-Degiorgis1,2, Dolores Gavier-Widén1,4, Hans-Olof Nilsson3 and Torkel Wadström3

1 Department of Wildlife, Fish and Environment, National Veterinary Institute, SE-751 89 Uppsala, Sweden
2 Centre for Fish and Wildlife Health, Institute of Animal Pathology, Länggassstr. 122, Postfach, Berne, Switzerland
3 Department of Laboratory Medicine, Division of Medical Microbiology, Lund University, Sölvegatan 23, SE-223 62 Lund, Sweden
4 Corresponding author (email: dolores{at}sva.se)

ABSTRACT:   Specimens of gastric mucosa and liver of 25 free-ranging Eurasian lynx (Lynx lynx), and four red foxes (Vulpes vulpes) shot in Sweden during 1999–2000, were investigated for the presence of Helicobacter species. Histopathology, bacteriologic culture and urease test, Helicobacter genus-specific 16S rDNA PCR analysis, and DNA sequence analysis were applied. Numerous Helicobacter-like organisms were observed histologically in the gastric mucosa of one fox. Helicobacter spp. were detected in the stomach by PCR analysis in 17 (68%) of the lynx and in three (75%) of the foxes. Seven of the positive lynx were also positive in the urease test. PCR fragments, amplified from lynx and foxes, were sequenced and compared with those of known Helicobacter species. PCR products from lynx were closely related (≥98% homology) to H. heilmannii, and PCR fragments from foxes demonstrated close homology to H. heilmannii and H. salomonis. No Helicobacter spp. or Helicobacter-like organisms could be cultured. The PCR analysis of the liver was negative for all animals. The pathologic significance of the presence of Helicobacter spp. in the stomach of free-ranging lynx and foxes remains uncertain.
  Key words:  Bacteria, gastric mucosa, Helicobacter, lynx, PCR, red fox, Vulpes.






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