Tetracycline resistance determinants, Tet B and Tet M, detected in Pasteurella haemolytica and Pasteurella multocida from bovine herds

J Antimicrob Chemother. 1995 Nov;36(5):815-9. doi: 10.1093/jac/36.5.815.


Resistance to antibiotics has recently emerged in Pasteurella haemolytica and Pasteurella multocida isolated from bovine herds. Forty-two clinical strains resistant to antibiotics and isolated through a French national network from different origins were analysed for their resistance to tetracycline. The MICs of tetracycline ranged from 32-256 mg/L. The resistance determinants Tet B and Tet M were detected in two strains, in which they are probably chromosomal.

MeSH terms

  • Animals
  • Cattle
  • Genes, Bacterial*
  • Mannheimia haemolytica / genetics*
  • Pasteurella multocida / genetics*
  • Tetracycline Resistance / genetics*