Sushan Han

Associate Professor Microbiology, Immunology, and Pathology

315 Diagnostic Medicine Center

(970) 297-5125

About Sushan

Dr. Sushan Han is an associate professor in anatomic pathology at the Diagnostic Medicine Center. Her interests include zoo and wildlife pathology where she provides necropsy and histopathology service to many zoos and wildlife centers as well as the domestic animal case stream. Her special research interest is currently understanding Treponeme-associated hoof disease in wild elk from Washington State USA with several other diverse projects in zoo pathology (see publications below). She is a dedicated professor of systemic pathology and immunology in the DVM curriculum.


B.S., University of Idaho, 1995D.V.M., Washington State University, 1999Ph.D., Washington State University, 2009


Diplomate, Anatomic Pathology
American College of Veterinary Pathologists


Clagett, D. O., Han, S., Johnston, M. S. (Accepted May 2016). Malignant plasma cell neoplasia in ferrets: A review of six cases. Journal of Exotic Pet Medicine.Stringer, E., Han, S., Larsen, S. (2016). Cutaneous vitiligo associated with hypovitaminosis D in Malayan flying foxes (Pteropus vampyrus) and island flying foxes (Pteropus hypomelanus). Veterinary Record Case Reports. 4(epub), 1-7. Schaefer, A.M., Reif, J.S., Guzm?n, E.A., Bossart, G.D., Ottuso, P., Snyder, J., Medalie N., Rosato R., Han, S., Fair, P.A., McCarthy, P.J. (2016). Toward the identification and experimental culture of Lacazia loboi from Atlantic Bottlenose Dolphin (Tursiops truncates). Medical Mycology. Epub (April 26).Stringer, E.C., Cossaboon, C., Han, S., Taylor-Cousar, J. (2016). Sinusitis, bronchiectasis, and flatus in a Sumatran Orangutan (Pongo abelii): Could this be cystic fibrosis? Journal of Zoo and Wildlife Medicine. 47(1), 347-350. Han, S., Garner, M.M. (2016). Soft tissue mineralization in captive two-toed sloths (Coloepus sp.). Veterinary Pathology. 53(3), 659-665Bosco-Lauth, A.M., Han, S., Hartwig, A., Bowen, R.A. (2015). Development of a hamster model for chikungunya virus infection and pathogenesis. PLoS One. 10(6, Epub), 1-10.Brown, W.C., Turse, J.E., Lawrence, P.K., Johnson, W.C., Scoles, G.A., Deringer, J.R., Sutten, E.L., Han, S., Norimine, J. (2015). Loss of immunization-induced epitope-specific CD4 T-Cell response following Anaplasma marginale infection requires presence of the T-Cell epitope on the pathogen and is not associated with an increase in lymphocytes expressing known regulatory cell phenotypes. American Society of Microbiology. 22(7), 742-753.Dadone, L.I., Garner, M.M., Klaphake, E., Johnston, M.S., Han, S. (2014). Anaplastic mandibular carcinoma in a meerkat (Suricata suricatta). Journal of Zoo and Wildlife Medicine. 45(2), 413-416.Rabbis, S., Byers, S.R., Han, S., Callan, R.J. (2014). Epizootic hemorrhagic disease in yak. Canadian Veterinary Journal. 55(4), 369-372.Han, S., Mansfield, K.M. (2014). Severe hoof disease in free-ranging Roosevelt elk (Cervus elaphus roosevleti) in Southwestern Washington, USA. Journal of Wildlife Diseases. 50(2), 259-270.Schaffer, P.A., Weishaar, K.M., Han, S. (2013). Endobronchial metastasis in a dog with sarcoma. Journal of Veterinary Diagnostic Investigation. 25(4), 546-550.Schaffer, P.A., Sonis, J.M., Rodriguez, J.S., Han, S. (2012). Case report: Ileo-jejunal strangulation in the uterine mesometrium of a non-pregnant mare. Clinical Theriogenology. 4, 55-60.Rodriguez, J.S., Han, S., Nielson, S., Pearson, L.K., Gay, J.M., Tibary, A. (2011). Consequences of intrauterine enrofloxacin infusion on mare endometrium. Journal of Equine Veterinary Science. 32, 106-111.Keller, M., Han, S., Snekvik, K.R. (2011). Severe anisakiasis and cutaneous myxoma in a California yellowtail (Seriola lalandi valenciennes). Journal of Fish Diseases. 34, 635-639.Chen, M.F., Cheng, Y.W., Popochock, D., Russell, B., Kerwin, J., Bertolini, J., Gleckler, J., Snekvik, K.R., Han, S. (2011). Isometamidium chloride reduces mortality of adult chinook salmon (Oncorhynchus tshawytscha) due to Cryptobia salmositica. North American Journal of Aquaculture. 73, 304-310.Han, S., Norimine, J., Brayton, K.A., Palmer, G.H., Scoles, G.A., Brown, W.C. (2010). Anaplasma marginale infection with persistent high-load bacteremia induces a dysfunctional memory CD4+ T lymphocyte response but sustains high IgG titers. Clinical and Vaccine Immunology. 17, 1881-1890.Han, S., Norimine, J., Palmer, G.H., Mwangi, W., Lahmers, K.K., Brown, W.C. (2008). Rapid deletion of antigen-specific CD4+ T cells following infection represents a strategy of immune evasion and persistence for Anaplasma marginale. The Journal of Immunology. 181, 7759-7769. Evermann, J.F., Abbott, J.R., Han, S. (2006). Canine coronavirus-associated puppy mortality without evidence of concurrent canine parvovirus infection. Journal of Veterinary Diagnostic Investigation. 17, 610-614.Norimine, J., Han, S., Brown, W.C. (2006). Quantification of Anaplasma marginale major surface protein (MSP) 1a and MSP2 epitope-specific CD4+ T lymphocytes using bovine DRB3*1101 and DRB3*1201 tetramers. Immunogenetics. 58, 726-39.

Research Specialty

Zoo and wildlife pathology