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Photo: Barbara A Byrne

Barbara A Byrne- BA, DVM, PhD
Associate Professor of Clinical
Pathology, Microbiology & Immunology

4206 VM3A
Davis, CA 95616

+1 530 754 6286


Research Focus

Molecular characterization of Rhodococcus equi (R. equi)

Ecology of microbial disease

Specialty Focus



1980 BA , University of California, Santa Cruz,
1987 DVM , Colorado State University,
1998 PhD , Washington State University,

Honors and Awards

1994 Washington State University: TA Excellence in Teaching Award
1990 The Ohio State University College of Veterinary Medicine Hospital Service Award
1987 Pfizer Veterinary Scholarship
1986 Phi Zeta, Veterinary Honor Society
1986 Isaac E. Newsom Memorial Scholarship
1984 Tracy Bissette Memorial Scholarship


Diplomate American College of Veterinary Internal Medicine, Large Animal
Diplomate American College of Veterinary Microbiology, Bacteriology and Mycology

Active Research Grants

Co-Investigator, Evaluation of fecal Salmonella in symptomatic and asymptomatic dogs and cats, Kristen Clothier (Principal Investigator), United States Food and Drug Administration

Co-Investigator, Assessment of the use of Uricult Vet paddles in the diagnosis, quantification, and identification of bacterial cystitis in dogs and cats, J Westropp (Principal Investigator), Center for Companion Animal Health

Most Recent 10 Publications

  • Link Icon 2011 Angelos JA, Ball LM, Byrne BA Minimum inhibitory concentrations of selected antimicrobial agents for Moraxella bovoculi associated with bovine keratoconjunctivitis J Vet Diagn Invest,
  • Link Icon 2011 Siembieda JL, Miller WA, Byrne BA, Ziccardi MH, Anderson N, Chouicha N, Sandrock CE, Johnson CK Zoonotic pathogens isolated from wild animals and environmental samples at two California wildlife hospitals J Am Vet Med Assoc,
  • Link Icon 2011 Brownstein D, Miller MA, Oates SC, Byrne BA, Jang S, Murray MJ, Gill VA, Jessup DA Antimicrobial susceptibility of bacterial isolates from sea otters (Enhydra lutris) J Wildl Dis,
  • Link Icon 2010 Hawkins MG, Taylor IT, Byrne BA, Armstrong RD, Tell LA Pharmacokinetic-pharmacodynamic integration of orbifloxacin in Japanese quail (Coturnix japonica) following oral and intravenous administration J Vet Pharmacol Ther,
  • Link Icon 2010 Sykes JE, Mapes S, Lindsay LL, Samitz E, Byrne BA Corynebacterium ulcerans bronchopneumonia in a dog J Vet Intern Med,
  • Link Icon 2010 Schriewer A, Miller WA, Byrne BA, Miller MA, Oates S, Conrad PA, Hardin D, Yang HH, Chouicha N, Melli A, Jessup D, Dominik C, Wuertz S Presence of Bacteroidales as a predictor of pathogens in surface waters of the central California coast Appl Environ Microbiol,
  • Link Icon 2010 Sitt T, Bowen L, Blanchard MT, Gershwin LJ, Byrne BA, Dold C, McBain J, Stott JL Cellular immune responses in cetaceans immunized with a porcine erysipelas vaccine Vet Immunol Immunopathol,
  • Link Icon 2010 Kruger EF, Byrne BA, Pesavento P, Hurley KF, Lindsay LL, Sykes JE Relationship between clinical manifestations and pulsed-field gel profiles of Streptococcus canis isolates from dogs and cats Vet Microbiol,
  • Link Icon 2010 Byrne BA, Rand CL, McElliott VR, Samitz EM, Brault SA Atypical Dermatophilus congolensis infection in a three-year-old pony J Vet Diagn Invest,
  • Link Icon 2009 Al-Nimri S, Miller WA, Byrne BA, Guibert G, Chen L A unified approach to molecular epidemiology investigations: tools and patterns in California as a case study for endemic shigellosis BMC Infect Dis,