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Photo: John A Angelos

John A Angelos- BS, DVM, MS, PhD
Associate Professor and Associate Professor and Associate Researcher
Medicine & Epidemiology

3127 Tupper Hall
Davis, CA 95616


Specialty Focus

Livestock Medicine & Surgery


2002 PhD Comparative Pathology, University of California, Davis
1992 DVM Veterinary Medicine, Cornell University, Ithaca, NY
1990 MS Virology, Cornell University, Ithaca, NY
1987 BS Microbiology, Cornell University, Ithaca, NY

Honors and Awards

2009 Favorite Clinician Award
1999-2000 UC Davis Graduate Fellowship
1992 Merck Manual Award
1992 New York State Veterinary Medical Society Prize
1992 A. Gordon Danks Large Animal Surgery Award
1991 Phi Zeta (Veterinary Honor Society)
1990 Geraldine R. Dodge Summer Fellowship
1990 Gamma Sigma Delta (Honor Society of Agriculture)
1990 1st Place Veterinary Student, Research Poster Day, NYSCVM
1989 Dorothy Russell Havemeyer Summer Fellowship
1988 Dean's Incentive Award
1987 Ho-Nun-De-Kah (Honor Society of College of Ag and Life Science) Cornell
1987 BS with Honors and Distinction
1987 Graduate Research Assistantship


Diplomate American College of Veterinary Internal Medicine (Large Animal)
State Licensure - California
State Licensure - New York

Active Research Grants

Principal Investigator, Prevention of infectious bovine keratoconjunctivitis with an intranasal Moraxella bovis vaccine, (Principal Investigator), Russell L. Rustici Rangeland and Cattle Research Endowment Proposal

Principal Investigator, Use of recombinant Moraxella bovis antigens to prevent infectious bovine keratoconjunctivitis, (Principal Investigator), UC Davis Center for Food Animal Health

Principal Investigator, Intranasal vaccination of cattle with a modified live Mannheimia haemolytica vaccine delivery strain expressing recombinant Moraxella bovis cytotoxin, (Principal Investigator), UC Davis Center for Food Animal Health

Most Recent 10 Publications

  • Link Icon 2014 Rivera-Garcia S, Angelos JA, Rowe JD, Byrne BA, Wetzlich SE, Van Liew DB, Tell LA Pharmacokinetics of ceftiofur crystalline-free acid following subcutaneous administration of a single dose to sheep. Am J Vet Res,
  • Link Icon 2014 Angelos JA, Edman JM, Chigerwe M Ocular Immune Responses in Steers following Intranasal Vaccination with Recombinant Moraxella bovis Cytotoxin Adjuvanted with Polyacrylic Acid. Clin Vaccine Immunol,
  • Link Icon 2013 Varga, A, Angelos, JA, Graham, TW, Chigerwe, M Preliminary investigation of cardiac troponin I concentration in cows with common production diseases. J Vet Intern Med,
  • Link Icon 2013 Chigerwe M, Shiraki R, Olstad EC, Angelos JA, Ruby AL, Westropp JL Mineral composition of urinary calculi from potbellied pigs with urolithiasis: 50 cases (1982-2012). J Am Vet Med Assoc,
  • Link Icon 2011 Mavangira V, Angelos J, Samitz E, Rowe J, Byrne B. Gangrenous mastitis caused by Bacillus species in six goats J Am Vet Med Assoc,
  • Link Icon 2011 Angelos JA, Gohary K, Ball LM, Hess JF Randomized controlled field trial to assess efficacy of a Moraxella bovis pilin-cytotoxin-Moraxella bovoculi cytotoxin subunit vaccine to prevent naturally occurring infectious bovine keratoconjunctivitis Am J Vet Res,
  • Link Icon 2011 Angelos JA, Ball LM, Byrne BA Minimum inhibitory concentrations of selected antimicrobial agents for Moraxella bovoculi associated with infectious bovine keratoconjunctivitis J Vet Diagn Invest,
  • Link Icon 2011 DorĂ© E, Angelos JA, Rowe JD, Carlson JL, Wetzlich SE, Kieu HT, Tell LA Pharmacokinetics of ceftiofur crystalline free acid after single subcutaneous administration in lactating and nonlactating domestic goats (Capra aegagrus hircus) J Vet Pharmacol Ther,
  • Link Icon 2010 Angelos JA, Lane VM, Ball LM, Hess JF Recombinant Moraxella bovoculi cytotoxin-ISCOM matrix adjuvanted vaccine to prevent naturally occurring infectious bovine keratoconjunctivitis Vet Res Commun,
  • Link Icon 2010 Mavangira V, Cornish JM, Angelos JA Effect of ammonium chloride supplementation on urine pH and urinary fractional excretion of electrolytes in goats J Am Vet Med Assoc,

Most Recent 5 Book Chapters

2014 Angelos JA, Smith BP: Down cows (Alert Downers), Smith BP, (ed), Large Animal Internal Medicine, 5th Ed, St. Louis. 1013-4.

2014 Angelos JA, Thurmond MC: Bovine lymphoma, Smith BP, (ed), Large Animal Internal Medicine, 5th Ed, St. Louis. 1070-3.

2014 Angelos, JA: Infectious bovine keratoconjunctivitis, Smith BP, (ed), Large Animal Internal Medicine, 5th Ed, St. Louis. 1171-4.

2013 Angelos JA: Overview of infectious keratoconjunctivitis (Pinkeye, Infectious ophthalmia) , Aiello SE, Moses MA, (ed), The Merck Veterinary Manual, 11th Ed (Online Edition), Whitehouse Station, NJ. .

2010 Angelos JA: Moraxella, Gyles CL, Prescott JF, Songer JG, Thoen CO, (ed), Pathogenesis of Bacterial Infections in Animals, 4th Ed, Ames. 469-81.