Arthur L. Hattel, DVM, Diplomate ACVP

  • Clinical Professor
  • Veterinary Pathologist
Arthur L. Hattel, DVM, Diplomate ACVP
Animal Diagnostic Lab
University Park, PA 16802
Work Phone: 814-863-2024
Fax: 814-865-3907

Areas of Expertise

  • Veterinary Pathology
  • Wildlife Diseases


  1. Residency in Veterinary Pathology, School of Veterinary Medicine, University of Pennsylvania
  2. DVM, College of Veterinary Medicine and Biomedical Sciences, Colorado State University
  3. College of Arts and Sciences, University of Colorado

Professional Experience

1987-Present: Veterinary Pathologist, The Pennsylvania State University.

1984-1986: Instructor/Lecturer, Veterinary Pathology, University of Pennsylvania.

1981-1984: Resident, Veterinary Pathology, University of Pennsylvania.

1980-1981: Staff Veterinarian, Julia Animal Hospital, Maine.

Teaching Areas

  • General Animal Pathology
  • Wildlife Diseases
  • Mechanisms of Disease
  • Pathobiology


Phi Zeta Honor Society in Veterinary Medicine                                                    

C.L. Davis Award in Veterinary Pathology

Selected Publications

Srinivas, U., Mousavi, H. S., Monga, V., Hattel, A., and Jayarao, B. Simultaneous sparsity model for histopathological image representation and classification. IEEE T Med Imaging 33(5):1163-1179, 2014.

Hattel, A., Monga, V., Srinivas, U., Gillespie, J., Brooks, J., Fisher, J., and Jayarao, B. Development and evaluation of an automated histopathology classification system for veterinary pathology. J Vet Diagn Invest 25(6):765-769, 2013.

Soehnlen, M. K., Aydin, A., Murthy, K. S., Lengerich, E. J., Hattel, A. L., Houser, B. A., Fenton, G. D., Lysczek, H. R, Burns, C. M., Townsend, A. M., Brooks, J. W., Wolfgang, D. R., and Jayarao, B. M. Epidemiology of Mycoplasma bovis in Pennsylvania veal calves. J Dairy Sci 95(1):247-54, 2012.

Soehnlen, M. K., Aydin, A., Lengerich, E. J., Houser, B. A., Fenton, G. D., Lysczek, H. R., Burns, C. M., Byler, L. I., Hattel, A. L., Wolfgang, D. R., and Jayarao, B. M. Blinded controlled field trial of two commercially available Mycoplasma bovis bacterin vaccines in veal calves. Vaccine 29(33):5347-5354, 2011.

Hattel, A., McAllister, Scott E. Postanesthetic poliomyelomalacia in a Percheron filly. J Am Vet Med Assoc 238(7):867-869, 2011.

Houser, B. A., Hattel, A. L., and Jayarao, B. M. Real-time multiplex PCR assay for rapid detection of Clostridium difficile toxin encoding strains. J Foodborne Pathog Dis 7(6):719-726, 2010.

Hattel, A. L., Shaw, D.P., Fisher, J.S., Love, B. C.,Drake, T. R., and Wagner, D. C. Mortality in Pennsylvania captive elk (Cervus elaphus): 1998-2006. J Vet Diagn Invest 19:334-337, 2007.

Brooks, J. W., Key, D. W., Hattel, A., Hovingh, E., Peterson, R., Shaw, D., and Fisher, J. Failure to detect bovine viral diarrhea virus in necropsied farm-raised white-tailed deer (Odocoileus virginianus) in Pennsylvania. J Vet Diagn Invest 19:298-300, 2007.

Brooks, J.W., Whary, M.T., Hattel, A. L., Shaw, D. P., Ge, Z., Fox, J. G. and Poppenga, R. H. Clostridium piliforme  infection in two farmed-raised white-tailed deer fawns (Odocoileus virginianus) and association with copper toxicosis. Vet Path 43(5): 765-768, 2006.

Hattel, A. L., Shaw, D. P., Love, B. C., Wagner, D. C., Drake, T.R., and and Brooks, J. W. A retrospective study of mortality in Pennsylvania captive white-tailed deer (Odocoileus virginanus): 2000-2003. J Vet Diagn Invest 16:515-521, 2004.

Boger, L., and Hattel, A. L. Additional evaluation of undiagnosed bovine abortion cases may reveal fetal neosporosis. Veterinary Parasitology 113(1):1-6, 2003.

Lutz, M. A., Gervais, F., Bernstein, A., Hattel, A. L., and Correll, P. H. STK receptor tyrosine kinase regulates susceptibility to infection with Listeria monocytogenes. Infection and Immunity 70(1):416-8. 2002.

Hattel, A.L., Castro, M. D., Gummo, J. D., Weinstock, D., Reed, J. A., and Dubey, J. P. Neosporosis-associated bovine abortion in Pennsylvania. Vet Parasitol 74:307-313, 1998.

Hamir, A. N., Moser, G., Wampler, T., Hattel, A., Dietzschold, B., and Rupprecht, C. Use of a single anti-nucleocapsid monoclonal antibody to detect rabies antigen in formalin-fixed paraffin-embedded tissues. Vet Rec 138:114-115, 1996.

Dubey, J. P, Metzger, F. L., Hattel, A. L., Lindsay, D. S., and Fritz, D. L. Canine cutaneous neosporosis: Clinical improvement with Clindamycin. Vet Dermatol 6(1):37-43, 1995.

Owen, R. L., Wideman Jr., R. F., Barbato, G. F., Cowen, B. S., Ford, B. C., and Hattel, A. L. Morphometric and histologic changes in the pulmonary system of broilers raised at simulated high altitude. Avian Path 24:293-302, 1995.

McAnulty, J. F., Hattel, A. L., and Harvey, C. E. Wound healing and brain stem auditory evoked potentials after experimental total ear ablation with lateral tympanic bulla osteotomy in dogs. Vet Surg 24(1):1-8, 1995.

McAnulty, J. F., Hattel, A. L., and Harvey, C. E. Wound healing and brain stem auditory evoked potentials after experimental ventral tympanic bulla osteotomy in dogs. Vet Surg 24(1):9-17, 1995.

Margolis, M. J., Hutchinson, L. J., Kephart, K.B., Hattel, A. L., Whitlock, R. H., and Payeur, J. B. Results of using histologic examination and acid-fast staining to confirm a diagnosis of swine mycobacteriosis made on the basis of gross examination. J Am Vet Med Assoc 204(10):1571-1572, 1994.

Sweigard, K.D. and Hattel, A. L. Oral hemangiosarcoma in a horse. Equine Pract 15(2): 10-13, 1993.

Metzger, F. L., Hattel, A. L., and White, D. G. Hematuria, hyperestrogenemia and hyperprogesteronemia due to a sertoli cell tumor in a bilaterally cryptorchid dog. Canine Pract, 18:3, 32-35, 1993.

Owen, R.L., Cowen, B. S., Hattel, A. L., Naqi, S. A., and Wilson, R. A. Presence of viral antigen following exposure of one-day-old chickens to the Holland 52 strain of infectious bronchitis virus. Avian Pathol 20:663-673, 1991.

Hattel, A. L., Drake, T. R., Anderholm, B. J., and McAllister E. S. Pulmonary aspergillosis associated with enterocolitis in a horse. J Am Vet Med Assoc, 199(5):589-590, 1991.

Dubey, J. P., Porter, S. L., Hattel, A. L., Kradel, D. C., Topper, M. J., and Johnson, L. Clinical encephalitis in a golden eagle (aquila crysaetos). J Zoo Wildlife Med 22(2):233-236, 1991.

Owen, R. L., Wideman, R. F., Hattel, A. L., and Cowen, B. S. Use of a hypobaric chamber as a model system   for investigating ascites in broilers. Avian Dis 34(3):754-758, 1990.

Dubey, J. P., Hattel, A. L., Lindsay, D. S., and Topper, M. J. Neonatal neospora canium infection in dogs: Isolation of the causative agent and experimental transmission. J Am Vet Med Assoc 193(10):1259-1263, 1988.

Hattel, A. L., Diters, R. W., and Snavely, D. A. Ureteral fibropapilloma in a dog. J Am Vet Med Assoc 188(8):873, 1986.

Markel, M. D., Dyer, R. M., and Hattel, A. L. Acute renal failure associated with application of a mercuric blister in a horse. J Am Vet Med Assoc 185(1):92-94, 1984.

Reef, V. B, and Hattel, A. L. Echocardiographic detections of tetralogy of fallot and myocardial abscess in a calf. Cornell Vet 74(2):81-95, 1984.

Research Interests

Animal Diagnostic Laboratory Research Faculty
  • Diagnostic Pathology
  • Diagnostic Immunohistochemistry
  • Bovine Fetal Neosporosis