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Thomas Passler, DVM, PhD, DACVIM

Dr. Passler was born and raised in Berlin, Germany and completed his veterinary training at the Free University, Berlin in 2003. Following two years in private mixed-animal practice, Dr. Passler joined the team of veterinarians in the food animal section of Auburn University as a Rresident of Large Animal Internal Medicine.

In 2008, he became board-certified as a Diplomate of the American College of Veterinary Internal Medicine and continued his tenure at Auburn University as a Clinical Instructor of Food Animal Internal Medicine.

Dr. Passler is currently an Assistant Professor in the departments of Clinical Sciences and Pathobiology, where his responsibilities include the management of out-patient and hospitalized cases, teaching, research, service, and outreach.


Research and Clinical Interests

Dr. Passler’s clinical and research interests include the medical and infectious diseases of large and small ruminants and camelids. His research has primarily concentrated on the infectious pathogen Bovine viral diarrhea virus (BVDV) with a focus on BVDV infections in white-tailed deer. Specific interests include the epidemiology and pathophysiology of BVDV infections in heterologous species and their impact on the control of BVDV in cattle populations. Furthermore, Dr. Passler is interested in furthering the knowledge on the pathophysiology of diseases affecting domestic and wild ruminants, and camelids.

Selected Publications

  • Passler, T., Walz, P.H., Ditchkoff, S.S., Givens, M.D., Maxwell, H.S., Brock, K.V., Experimental persistent infection with bovine viral diarrhea virus in white-tailed deer. Vet Microbiol. 2007. 122(3-4):350-6
  •  Passler, T., Walz, P.H., Ditchkoff, S.S., Walz, H.L., Givens, M.D., Brock, K.V., Evaluation of hunter-killed white-tailed deer for evidence of bovine viral diarrhea virus infection in Alabama. J Vet Diagnostic Invest. 2008. 20(1):79-82.
  •  Passler, T., Walz, P.H., Ditchkoff, S.S., Brock, K.V., DeYoung, R.W., Foley, A.M, Givens, M.D., Cohabitation of pregnant white-tailed deer and cattle persistently infected with Bovine viral diarrhea virus results in persistently infected fawns. Vet Microbiol. 2009. 134(3-4):362-7.
  •  Givens, M.D., Riddell, K.P., Zhang, Y., Galik, P., Walz, P.H., Brodersen, B.W., Johnson, J.W., Passler, T., Widel, P., Tremblay, R., Safety and efficacy of vaccination of seronegative bulls with modified-live, cytopathic bovine viral diarrhea viruses. Theriogenology. 2009. 71(6):975-83.
  •  Passler, T., Walz, P.H., Bovine viral diarrhea virus infectious in heterologous species. Anim Health Res Rev. 2009. Nov 3:1-15. [Epub ahead of print].
  •  Passler, T., Ditchkoff, S.S., Givens, M.D., Brock, K.V., DeYoung, R.W., Walz, P.H., Transmission of Bovine viral diarrhea virus among white-tailed deer (Odocoileus virginianus). 2010. 41(2):20.
  •  Walz, P.H., Grooms, D.L., Passler, T., Ridpath, J.F., Callan, R.J., Step, D.L., Tremblay R., Givens, M.D., ACVIM Consensus statement: Control of Bovine viral diarrhea virus in ruminants. J Vet Intern Med. 2010. 24(3):476-86.
  • Chamorro, M.F., Passler, T., Givens, M.D., Edmondson, M.A., Wolfe, D.F., Walz, P.H., Evaluation of transmission of bovine viral diarrhea virus (BVDV) between persistently infected and naive cattle by the horn fly (Haematobia irritans). Vet Res Commun. 2011 35(2):123-9.
  • Passler, T., Marley, M.S., Chamorro, M.F., Newbolt, C.H., Ditchkoff, S.S., Maxwell, H.S., Walz, P.H., Evaluating transmission of bovine viral diarrhea virus to cattle by exposure to carcasses of persistently infected white-tailed deer (Odocoileus virginianus). Intern J Appl Res Vet Med. 2012 10(1):48-53.
  • Passler, T., Walz, H.L., Ditchkoff, S.S., van Santen, E., Brock, K.V., Walz, P.H., Distribution of Bovine Viral Diarrhoea Virus Antigen in Persistently Infected White-Tailed Deer (Odocoileus virginianus). J Comp Pathol. 2012 Apr 18. (Epub ahead of print).
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