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Isolation of Mycoplasma bovis from bovine clinical samples in the Republic of Ireland
  1. W. J. Byrne, MVB1,
  2. R. McCormack, CBiol, MlBiol1,
  3. J. Egan, MVB, MVM, PhD, MRCVS1,
  4. N. Brice, HNC2,
  5. H. J. Ball, BSc, MSc, PhD, MRCPath2 and
  6. B. Markey, MVB, PhD, MRCVS3
  1. 1 Central Veterinary Research Laboratory, Abbotstown, Castleknock, Dublin 15, Ireland
  2. 2 Veterinary Sciences Division, Department of Agriculture for Northern Ireland, Stoney Road, Stormont, Belfast BT4 3SD
  3. 3 Faculty of Veterinary Medicine, University College Dublin, Ballsbridge, Dublin 4, Ireland


Mycoplasma bovis was detected in 134 (18 per cent) of 736 samples of bovine lung tissue collected from fatal pneumonia cases in the Republic of Ireland between April 1995 and December 1998. The cases occurred in 95 herds and recurred in four of them. Other respiratory pathogens were identified in 66 per cent of the M bovis-positive cases, with Pasteurelia species, infectious bovine rhinotracheitis and parainfluenza 3 virus being most frequently detected. Mastitis and arthritis were less common clinical signs associated with M bovis infection; 22 cases of M bovis mastitis and five cases of M bovis arthritis were diagnosed in five herds.

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