Isolation and antimicrobial susceptibilities of bacterial pathogens from bovine pneumonia: 1994--2002.

@article{Welsh2004IsolationAA,
  title={Isolation and antimicrobial susceptibilities of bacterial pathogens from bovine pneumonia: 1994--2002.},
  author={Ronald D Welsh and Laura B Dye and Mark Edward Payton and Anthony W. Confer},
  journal={Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc},
  year={2004},
  volume={16 5},
  pages={426-31}
}
Between 1994 and 2002, a total of 390 (46.3%) Mannheimia haemolytica, 292 (34.7%) Pasteurella multocida, and 160 (19.0%) Histophilus somni were isolated at the Oklahoma Animal Disease Diagnostic Laboratory from lungs from 6-18-month-old beef cattle with pneumonia. The ratio of M. haemolytica isolations to P. multocida isolations decreased from 3.1 in 1994 to 0.8 in 2000 while increasing to 1.5 in 2002. Mannheimia haemolytica isolations significantly (P < 0.05) decreased from 62.5% in 1994 to… CONTINUE READING

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