Picture of  Tiago Afonso

Tiago Afonso Assistant Professor, Department of Large Animal Clinical Sciences

Research Area(s)

  • Equine cardiology


Before joining the WCVM’s faculty, Dr. Afonso was a senior lecturer in equine internal medicine at New Zealand’s Massey University and at the University of Adelaide in Australia. Prior to that, he worked in a busy private practice during a foaling season in the state of Victoria, Australia.

After completing an integrated master’s (DVM) program at the University of Lisbon (Portugal), Dr. Afonso spent one year at Ghent University in Belgium as a large animal intern. His next move was to the Ontario Veterinary College (University of Guelph) for a one-year rotating internship in large animal medicine and surgery. 

In 2016, he completed his PhD degree (equine cardiology) and a three-year residency program at the University of Georgia. During the same year, he also became a board-certified specialist in large animal internal medicine by the American College of Veterinary Internal Medicine (ACVIM). 

Dr. Afonso’s main clinical interests include the cardiovascular system, respiratory tract diseases, gastrointestinal emergencies, antimicrobial therapy, infectious diseases, and critical care medicine, particularly the critically ill neonate.


Academic Credentials

  • DVM: Faculty of Veterinary Medicine, University of Lisbon, Portugal, 2008
  • PhD: College of Veterinary Medicine, University of Georgia, USA, 2016
  • Diplomate of the American College of Veterinary Internal Medicine (ACVIM, Large Animal), 2016

Research Interests

Dr. Afonso’s research interests are primarily focused on the medical management of heart failure in horses. In particular, he is interested in the blockade of the renin-angiotensin-aldosterone system through the use of angiotensin-converting enzyme inhibitors and angiotensin-receptor blockers.


  • Afonso, T.B., Simões, L.C., Lima, N.  2019.  In vitro assessment of inter-kingdom biofilm formation by bacteria and filamentous fungi isolated from a drinking water distribution system.  Biofouling, 35(10): 1041-1054.  https://www.doi.org/10.1080/08927014.2019.1688793

  • Afonso, T., Giguère, S., Brown, S.A., Barton, M.H., Rapoport, G., Barba, M., Dembek, K.A., Toribio, R.E., Coleman, A.E.  2018.  Preliminary investigation of orally administered benazepril in horses with left-sided valvular regurgitation.  Equine Veterinary Journal, 50(4): 446-451.  https://www.doi.org/10.1111/evj.12773

  • Afonso, T., Giguère, S., Rapoport, G., Brown, S.A., Coleman, A.E.  2016.  Attenuation of the blood pressure response to exogenous angiotensin I after oral administration of benazepril to healthy adult horses.  Equine Veterinary Journal, 49(3): 358-362.  https://www.doi.org/10.1111/evj.12593

  • Afonso, T., Giguère, S., Rapoport, G., Barton, M.H., Coleman, A.E.  2016.  Cardiovascular effects of pimobendan in healthy mature horses.  Equine Veterinary Journal, 48(3): 352-356.  https://www.doi.org/10.1111/evj.12432