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Photo: John Madigan

John Madigan- BS, DVM, MS
Professor and Researcher
Medicine & Epidemiology

2415A Tupper Hall
Davis, CA 95616

+1 530 752 6513


Research Focus

Equine and Comparative Neurology, Neonatal Medicine, Infectious Disease, Unusual Equine Clinical Presentations, Trigeminal Mediated Headshaking, Equine Rescue Methods

Anaplasma phagocytophilum, equine herpes-1, neonatology:  foal immunology and maladjusgtment syndrome, trigeminal mediated headshaking, equine behavior

Specialty Focus

Infectious Disease, Neonatal Medicine, Clinical Neurology, Emergency Response and Rescue Procedures and Equipment

Equine Medicine


1970 BS Animal Science, University of California, Davis,
1972 MS Animal Science, University of California, Davis,
1975 DVM , University of California, Davis,

Honors and Awards

2014 AAEP American Association of Equine Practitioners’ 2014 Frank J. Milne State-of-the-Art Lecturer
2013 Distinguished Professor - University of California -Davis
2008 Alumni Achievement Award, UC Davis School of Veterinary Medicine
2008 UC Davis Centennial Fall Convocation Speaker, Mondavi Center, UC Davis
2007 Legend of Academic Medicine, Large Animal Medicine, Kansas State University
2006 American Red Cross Hero Award, Animal Rescue Category
2006 US House of Representatives Certificate of Special Congressional Recognition Award (Congressman Mike Thompson)
2006 California State Assembly Certificate of Recognition
2006 American Association of Equine Practitioners Distinguished Service Award
2006 Letter of Commendation (Congressman Wally Herger)
2006 American Veterinary Medical Association Welfare Award
1997 Certificate of Appreciation for Flood Emergency Workers Recognition Day
1996 Pfizer Award Research Excellence
1994 US Army Certificate of Appreciation for Sling Rescue Operations


Diplomate American College of Veterinary Internal Medicine
Diplomate American College of Animal Welfare

Active Research Grants

Principal Investigator, Equine and Comparative Neurology - Transition of Consciousness and Trigeminal nerve disorders, (Principal Investigator), Private Donor

Co-Investigator, Investigation of Trigeminal Nerve Testing as a Diagnostic Aid in Equine Headshaking, (Principal Investigator), Center for Equine Health

Principal Investigator, Animals in Disasters - Training Modules for First Responders, (Principal Investigator), CAL-EMA, Homeland security

Principal Investigator, Equine Medicine Research, (Principal Investigator), Pfizer Animal Health

Most Recent 10 Publications

  • Link Icon 2013 Pusterla, N, Madigan, JE Equine Granulocytic Anaplasmosis Journal of Equine Veterinary Science,
  • Link Icon 2013 Jay-Russell, MT, Madigan, JE, Bengson, Y, Madigan, S, Hake, AF, Foley, JE, Byrne, BA Salmonella Oranienburg Isolated from Horses, Wild Turkeys and An Edible Home Garden Fertilized with Raw Horse Manure. Zoonoses and public health,
  • Link Icon 2013 Finno, CJ, Famula, T, Aleman, M, Higgins, RJ, Madigan, JE, Bannasch, DL Pedigree analysis and exclusion of alpha-tocopherol transfer protein (TTPA) as a candidate gene for neuroaxonal dystrophy in the American Quarter Horse. Journal of veterinary internal medicine / American College of Veterinary Internal Medicine,
  • Link Icon 2013 Aleman, M, Pickles, KJ, Conley, AJ, Stanley, S, Haggett, E, Toth, B, Madigan, JE Abnormal plasma neuroactive progestagen derivatives in ill, neonatal foals presented to the neonatal intensive care unit. Equine Veterinary Journal,
  • Link Icon 2013 Renier, AC, Kass, PH, Magdesian, KG, Madigan, JE, Aleman, M, Pusterla, N Oleander toxicosis in equids: 30 cases (1995-2010). Journal of the American Veterinary Medical Association,
  • Link Icon 2012 Finno, CJ, Aleman, M, Ofri, R, Hollingsworth, SR, Madigan, JE, Winfield, L, Bannasch, DL Electrophysiological studies in American Quarter horses with neuroaxonal dystrophy. Veterinary ophthalmology,
  • Link Icon 2012 Toth, B, Aleman, M, Brosnan, RJ, Dickinson, PJ, Conley, AJ, Stanley, SD, Nogradi, N, Williams, CD, Madigan, JE Evaluation of squeeze-induced somnolence in neonatal foals. American journal of veterinary research,
  • Link Icon 2012 Finno CJ, Aleman M, Ofri R, Hollingsworth SR, Madigan JE Electrophysiological Studies in American Quarter Horses with Neuroaxonal Dystrophy Vet Ophthalmology,
  • Link Icon 2012 Aleman M, Pickles KJ, Simonek G, Madigan JE Latent equine herpesvirus-1 in trigeminal ganglia and equine idiopathic headshaking J Vet Intern Med,
  • Link Icon 2012 Madigan JE, Haggett EF, Conley A, Stanley S, Moeller B, Toth B, Aleman M Allopregnanolone infusion induced neurobehavioral alterations in a neonatal foal: Is this a clue to the pathogenesis of neonatal maladjustment syndrome? Equine Vet J,

Most Recent 5 Book Chapters

2010 Madigan JE: Potomac Horse Fever, , Merck Veterinary Manual. .

2010 Madigan JE: Anaplasma phagocytophilum in horses, , Merck Veterinary Manual. .

2007 Madigan JE: Headshaking in horses, Smith B, (ed), Large Animal Internal Medicine. .

2007 Pusterla N, Madigan JE: Neorickettsia risticii, Sellon and Long, (ed), Equine Infectious Diseases. 357--362.

2007 Pusterla N, Madigan JE: Anaplasma phagocytophilum, Sellon and Long, (ed), Equine Infectious Disease, Phildelphia. 354-357.