Athens Veterinary Diagnostic Laboratory, Department of Pathology, Veterinary Diagnostic Laboratories
Anatomic Pathology - AVDL, Professor

Clinical Pathology | Diagnostic Pathology | Laboratory Animal Pathology


Research Interests

  • ​Infectious diseases
    • Pathogenesis of Bovine enterovirus-1 in cattle


  • Associate Professor of Pathology, Department of Veterinary Pathology and Athens Veterinary Diagnostic Laboratory
  • Anatomic Pathologist for the Georgia Laboratory Animal Diagnostic Service
  • Editorial Assistant to the Journal of Veterinary Diagnostic Investigation, Athens, GA
  • Chair, Animal Resources Advisory Committee, College of Veterinary, Medicine, University of Georgia, Athens, GA 2010 – present

Teaching Experience

  • VPAT 5400
  • VPAT 8000
  • VPAT 8100

Selected Publications

* = Corresponding Author

  • Blas-Machado U,* Saliki JT, Sánchez S, Brown CC, Zhang J, Keys D, Woolums A, Harvey SB: 2011, Pathogenesis of a Bovine Enterovirus-1 isolate in experimentally infected calves.” Vet Pathol. In press
  • Kent M*, Reiss C, Blas-Machado U: 2010, Elevated cardiac troponin I in a dog with an intracranial meningioma and evidence of myocardial necrosis. J Am Anim Hosp Assoc. 2010 Jan-Feb;46(1):48-55
  • Susan Knowles*, Blas-Machado U, Abigail M. Butler, Sara E. Gomez-Ibañez, Michael Q. Lowder, and Richard A. Fayrer-Hosken: 2010, Ameloblastic Fibro-odontoma Associated with a Retained 1 Molar in an Oldenburg Mare. J Vet Diagn Invest 22:987-990
  • Susan Knowles*, Elizabeth W. Uhl, Blas-Machado U, Abigail M. Butler: 2010, Intrapericardial ectopic 1 thyroid carcinoma in a cat. J Vet Diagn Invest 22: 1010-1013
  • Stephen B Harvey,* Leanne C Alworth, and Blas-Machado U: 2009, Molar Malocclusions in Pine Voles (Microtus pinetorum). J Am Assoc Lab Anim Sci. 48:412-5
  • Krimer PM*, Harvey SB, Blas-Machado U, Lauderdale JD, Moore PA: 2009, Reversible fibroadenomatous mammary hyperplasia in male and female New Zealand White rabbits associated with cyclosporine A administration. Vet Pathol. 46:1144-8
  • Hernández-Divers* SJ, Stahl SJ, Rakich PM, Blas-Machado U: 2009, Comparison of CO(2) laser and 4.0 MHz radiosurgery for making incisions in the skin and muscles of green iguanas (Iguana iguana). Vet Rec. 164:13-6
  • Johanna Elfenbein*, Brent Credille, Melinda Camus, Bruce LeRoy, Blas-Machado U, and Amelia Woolums: 2008, Hypoglycemia and hyperlactatemia secondary to lymphoma in an Angus cow. J Vet Intern Med. 22:1441-3
  • J.-Y. Yhee, S.-W. Hong, C.-H. Yu, A. R. Doster, Blas-Machado U, Y.-S. Lyoo and J.-H. Sur*: 2008, Immunohistochemical Application of an Antibody Specific for Human CD1a to the Diagnosis of Canine Mast Cell Tumour. J. Comp. Pathol. 139: 40e46
  • Scott J. Stahl, Stephen-Hernández Divers*, Tanya Cooper, and Blas-Machado U: 2008, Evaluation of transcutaneous pulmonoscopy for examination and biopsy of the lung of ball pythons (Python regius), and determination of preferred biopsy handling and fixation. J Am Vet Med Assoc.233:440-445
  • Hernandez-Divers* SJ, Stahl SJ, Cooper T, and Blas-Machado U: 2008, Comparison between CO2 laser and 4.0 MHz radiosurgery for incising skin in pigeons (Columba livia). J Avian Med Surg. 22:103-107
  • Blas-Machado U*, M.J. Boileau, J.T. Saliki, S.L. Caseltine, S.D. Goens, J.C. Duffy, R.D. Welsh: 2007, Fatal ulcerative and hemorrhagic typhlocolitis in a pregnant heifer associated with natural bovine enterovirus type-1 infection. Vet. Pathol., 44:110-115
  • Blas-Machado U*, J. de la Fuente, E. F. Blouin, C. Almazán, K. M. Kocan: 2007, Experimental Infection of C3H/HeJ Mice with the NY18 isolate of Anaplasma phagocytophilum. Vet. Pathol., 44:64-73
  • Liu G*, Shi F, Blas-Machado U, Yu R, Davis VL, Foster WG, Magoffin DA, Hughes CL: 2006, Dietary galactose inhibits GDF-9 mediated follicular development in the rat ovary. Reprod Toxicol. 21:26–33
  • de la Fuente, J.*, Almazán, C., Blas-Machado U, Naranjo, V., Mangold, A.J., Blouin, E.F., Gortazar, C., Kocan, K.M.: 2006, The tick protective antigen, 4D8, is a conserved protein involved in modulation of tick blood digestion and reproduction. Vaccine 24:4082-4095
  • Kuldeep Singh*, Blas-Machado U, Emily J. Cooper, Shannon L. Caseltine, Robert Nordhausen: 2006, Spontaneous subcutaneous myxosarcoma in a captive European hedgehog (Erinsceus europaeus). J Vet Diagn Invest 18: 622-627.
  • Almazan C*, Blas-Machado U, Kocan KM, Yoshioka JH, Blouin EF, Mangold AJ, de la Fuente J: 2005, Characterization of three Ixodes scapularis cDNAs protective against tick infestations. Vaccine 23:4403-4416.
  • Liu G, Shi F, Blas-Machado U, Duong Q, Davis VL, Foster WG, Hughes CL*: 2005, Ovarian effects of a high lactose diet in the female rat. Reprod Nutr Dev. 45:185-192.
  • Additional publications by Dr. Blas-Machado may be found at PubMed.

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