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Julie K. Levy, DVM, PhD, Diplomate ACVIM

Dr. Julie LevyMaddie’s® Professor of Shelter Medicine
Maddie’s® Shelter Medicine Program at the University of Florida

Dr. Levy’s clinical interests center on feline infectious diseases, neonatal kitten health, humane alternatives for cat population control, and immunocontraceptive vaccines for cats. She is the founder of two university-based feral cat spay/neuter programs which have sterilized more than 40,000 cats since 1994 (Operation Catnip). Dr. Levy’s accomplishments include publication of more than 100 journal articles and textbook chapters.


  • Residency, Small Animal Internal Medicine, North Carolina State University, 1993
  • Internship, Small Animal Medicine and Surgery, Angell Memorial Animal Hospital, 1990
  • PhD, Immunology, North Carolina State University, 1996
  • DVM, University of California-Davis, 1989
  • BA, Journalism, San Jose State University, 1982


  • European Society of Feline Medicine Award for Outstanding Contributions in the Field of Feline Medicine, awarded in Budapest, Hungary, September 2007
  • Commendation for Community Service, Alachua County Board of Commissioners, 2005
  • Outstanding Woman Veterinarian of the Year, Association of Women Veterinarians, 2005
  • Clinical Investigator Award, Florida Veterinary Medical Association, 2003
  • Carl J. Norden-Pfizer Distinguished Teacher Award, 2003
  • Student Organization Advisor of the Year for the Student Chapter of the American Association of Feline Practitioners, University of Florida, 2002
  • Superior Accomplishment Award for establishment of Operation Catnip, a large-scale spay-neuter clinic for feral cats at the College of Veterinary Medicine, University of Florida, 2000

Selected Publications:

  • Meeks C, Levy JK, Crawford PC, Farina LL, Origgi F, Alleman R, Seddon OM, Salcedo A, Hirsch BJ, Hirsch SG. Chronic disseminated Mycobacterium xenopi infection in a cat with idiopathic CD4+ T-lymphocytopenia. J Vet Intern Med 2008;22:1043-1047.
  • Levy JK, Crawford  PC, Hartmann K, Hofmann-Lehmann R, Little S, Sundahl E, Thayer V. 2008 American Association of Feline Practitioners feline retrovirus management guidelines. J Fel Med Surg 2008;10:300-316.
  • Reese MJ, Patterson EV, Tucker SJ, Dubovi EJ, Davis RD, Crawford PC, Levy, JK. Effects of anesthesia and surgery on serologic responses to vaccination in kittens. J Am Vet Med Assoc 2008;233:116-121.
  • Looney AL, Bohling MW, Bushby PA, Howe LM, Griffin B, Levy JK, Eddlestone SM, Weedon JR, Appel LD, Rigdon-Brestle YK, Ferguson NJ, Sweeney DJ, Tyson KA, Voors AH, White SC, Wilford CL, Farrell KA, Jefferson EP, Moyer MR, Newberry SP, Saxton MA. The Association of Shelter Veterinarians veterinary medical care guidelines for spay-neuter programs. J Am Vet Med Assoc 2008;233:74-86.
  • Goldkamp CE, Levy JK, Edinboro CH, Lachtara JL. Seroprevalences of feline leukemia virus and feline immunodeficiency virus in cats with abscesses or bite wounds and rate of veterinarian compliance with current guidelines for retrovirus testing. J Am Vet Med Assoc 2008;232:1152-1158.
  • Levy JK, Crawford PC, Kusuhara H, Motokawa K, Gemma T, Watanabe R, Arai S, Bienzle D, Hohdatsu T. Differentiation of feline immunodeficiency virus vaccination, infection, or vaccination and infection in cats. J Vet Intern Med 2008;22:330-334.
  • Levy JK, Crawford PC, Lappin MR, Dubovi EJ, Levy MG, Alleman R, Tucker SJ, Clifford EL. Infectious diseases of dogs and cats on Isabela Island, Galapagos. J Vet Intern Med 2008;22:60-65.
  • Levy JK, Crawford PC, Appel LD, Clifford EL. Comparison of intratesticular injection of zinc gluconate versus surgical castration to sterilize male dogs. Am J Vet Res 2008;69:140-143.
  • Levy JK, Edinboro CH, Glotfelty-CS, Dingman PA, West AL, Kirkland-Cady-KD. Seroprevalence of Dirofilaria immitis, feline leukemia virus, and feline immunodeficiency virus among dogs and cats rescued from the 2005 Gulf Coast hurricane disaster area. J Am Vet Med Assoc 2007;231:218-225.
  • Haber MD, Tucker MD, Marr HS, Levy JK, Burgess J, Lappin MR, Birkenheuer AJ. The detection of Cytauxzoon felis in apparently healthy free-roaming cats in the USA. Vet Parasitol 2007;146:316-320.
  • Patterson EV, Reese MJ, Tucker SJ, Dubovi EJ, Crawford PC, Levy JK. Effect of vaccination on parvovirus testing in kittens. J Am Vet Med Assoc 2007;230:359-363.
  • Crawford PC, Levy JK. New challenges for the diagnosis of feline immunodeficiency virus infection. Vet Clin North Am Small Anim Pract 2007 Mar;37:335-350.
  • Fischer SM, Quest CM, Dubovi EJ, Davis RD, Tucker SJ, Friary JA, Crawford PC, Ricke TA, Levy JK. Response of feral cats to vaccination at the time of neutering. J Am Vet Med Assoc 2007;230:52-58.
  • Richards JR, Elston TH, Ford RB, Gaskell RM, Hartmann K, Hurley KF, Lappin MR, Levy JK, Rodan I, Scherk M, Schultz RD, Sparkes AH. The 2006 American Association of Feline Practitioners Feline Vaccine Advisory Panel Report. J Am Vet Med Assoc 2006;229:1405-1441.
  • Wallace JL, Levy JK. Population characteristics of feral cats admitted to seven trap-neuter-return programs in the United States. J Fel Med Surg 2006;8:279-284.
  • DiGangi BA, Levy JK. Outcome of cats adopted from a biomedical research program. J Appl Anim Welfare Sci 2006;9:143-163.
  • Claus MA, Levy JK, MacDonald K, Tucker SJ, Crawford PC. Immunoglobulin concentrations in feline colostrum and milk, and the requirement of colostrum for passive transfer of immunity to neonatal kittens. J Fel Med Surg 2006;8:184-191.
  • Crawford PC, Levy JK, Werner LL. Evaluation of surrogate markers for passive transfer of immunity in kittens. J Am Vet Med Assoc 2006;228:1038-1041.
  • Levy JK, Crawford PC, Werner LL. Effect of age on reference intervals of serum biochemical values in kittens. J Am Vet Med Assoc 2006;228:1033-1037.
  • Crosse PA, Soares K, Wheeler JL, Cooke KL, Adin CA, O’Kelley JJ, Levy JK. Chromobacterium violaceum infection in two dogs. J Am Anim Hosp Assoc 2006;28:559-563.
  • Levy JK, Scott HM, Lachtara JL, Crawford PC. Seroprevalence of feline leukemia virus and feline immunodeficiency virus infection among cats in North America and risk factors for seropositivity. J Am Vet Med Assoc 2006;228:371-376.
  • Foley P, Foley JE, Levy JK, Paik T. Analysis of the impact of trap-neuter-return programs on populations of feral cats. J Am Vet Med Assoc 2005;227:1775-1781.
  • Browne LE, Carter TD, Levy JK, Snyder PS, Johnson CM. Pulmonary arterial disease in cats seropositive for Dirofilaria immitis but lacking adult heartworms in the heart and lungs. Am J Vet Res 2005;66:1544-1549.
  • Crawford PC, Slater MR, Levy JK. Accuracy of polymerase chain reaction for diagnosis of FIV infection. J Am Vet Med Assoc 2005;226:1503-1507.
  • Levy JK, Mansour M, Crawford PC, Pohajdak B, Brown RG. Survey of zona pellucida antigens for immunocontraception in cats. Theriogenol 2005;62:1334-1341.
  • MacDonald K, Levy JK, Tucker SJ, Crawford PC. Effects of passive transfer of immunity on results of diagnostic tests for antibodies against feline immunodeficiency virus in kittens born to vaccinated queens. J Am Vet Med Assoc 2004;225:1554-1557.
  • Levy JK, Crawford PC, Slater MR. Effect of vaccination against feline immunodeficiency virus on results of serological testing in cats. J Am Vet Med Assoc 2004;225:1558-1561.
  • Levy JK, Crawford PC. Humane strategies for controlling feral cat populations. J Am Vet Med Assoc 2004;225:1354-1360.
  • Luria BJ, Levy JK, Lappin MR, Breitschwerdt EB, Legendre AM, Hernandez JA, Gorman SP, Lee IT. Prevalence of infectious diseases in feral cats in northern Florida. J Fel Med Surg 2004;6:287-296.
  • Cistola AM, Golder FJ, Centonze LA, Williams LS, Levy JK. Anesthetic and physiologic effects of tiletamine, zolazepam, ketamine, and xylazine combination (TKX) in feral cats undergoing surgical sterilization. J Fel Med Surg 2004;6:297-303.
  • Berdoulay P, Levy JK, Snyder PS, Pegelow MJ, Hooks JL, Taveres LM, Gibson NM, Salute ME. Comparison of serological tests for the detection of natural heartworm infection in cats. J Am Anim Hosp Assoc 2004;40:376-384.
  • Levy JK, Miller LA, Crawford PC, Ritchey JW, Ross MK, Fagerstone KA. GnRH immunocontraception of male cats. Theriogenol 2004;62:1116-1130.
  • Hanel RM, Graham JP, Levy JK, Buergelt CD, Creamer J. Generalized osteosclerosis in a cat. Vet Radiol Ultrasound 2004;45:318-324.
  • Gorman S, Levy J. A public policy toward the management of feral cats. Pierce Law Rev 2004;2:157-181.
  • Seguin MA, Papich MG, Sigle KJ, Gibson NM, Levy JK. Pharmacokinetics of enrofloxacin in neonatal kittens. Am J Vet Res 2004;65:253-384.
  • Haney DR, Levy JK, Newell SM, Graham JP, Gorman SP. Use of fetal skeletal mineralization for prediction of parturition date in cats. J Am Vet Med Assoc 2003;223:1614-1616.
  • Levy JK, Snyder PS, Taveres LM, Hooks JL, Pegelow MJ, Slater MR, Hughes KL, Salute ME. Prevalence and risk factors for heartworm infection in cats from northern Florida. J Am Anim Hosp Assoc 2003;39:533-537.
  • Levy JK, Woods JE, Turick SL, Etheridge DL. Number of unowned free-roaming cats in a college community in the southern United States and characteristics of community residents who feed them. J Am Vet Med Assoc 2003;223:202-205.
  • Gillis KD, MacKay RJ, Yowell CA, Levy JK, Greiner EC, Dame JB, Cheadle MA, Hernandez J, Massey ET. Naturally occurring Sarcocystis infection in domestic cats (Felis catus). Int J Parasitol 2003;33:877-883.
  • Crawford PC, Hanel RM, Levy JK. Evaluation of treatment of colostrum-deprived kittens with equine IgG. Am J Vet Res 2003;64:969-75.
  • Hanel RM, Crawford PC, Hernandez J, Benson NA, Levy JK. Neutrophil function and plasma opsonic capacity in colostrum-fed and colostrum-deprived neonatal kittens. Am J Vet Res 2003;64:538-543.
  • Levy JK, Gale DW, Gale LA. Evaluation of the effect of a long-term trap-neuter-return and adoption program on a free-roaming cat population. J Am Vet Med Assoc 2003;222:42-46.
  • Scott KC, Levy JK, Crawford PC. Characteristics of free-roaming cats presented for sterilization. J Am Vet Med Assoc 2002;221:1136-1138.
  • Scott KC, Levy JK, Gorman SP, Newell SM. Body condition of feral cats, and the effect of neutering. J Appl Anim Welfare Sci 2002;5:209-219.
  • Centonze LA, Levy JK. Characteristics of feral cat colonies and their caretakers. J Am Vet Med Assoc 2002;220:1627-1633.
  • Williams LS, Levy JK, Robertson SA, Cistola AM, Centonze LA. Use of the anesthetic combination of tiletamine, zolazepam, ketamine, and xylazine for neutering feral cats. J Am Vet Med Assoc 2002;220:1491-1495.
  • Gorman SP, Levy JK, Hampton AL, Collante WR, Harris AL, Brown RG. Evaluation of a porcine zona pellucida vaccine for the immunocontraception of domestic kittens (Felis catus). Theriogenology 2002;58:135-149.
  • Lee IT, Levy JK, Gorman SP, Crawford PC, Slater MR. Prevalence of feline leukemia virus infection and serum antibodies against feline immunodeficiency virus in unowned free-roaming cats. J Am Vet Med Assoc 2002;220:620-622.
  • Levy JK, Crawford PC, Collante WC, Papich MG. Use of adult cat serum to correct failure of passive transfer in kittens. J Am Vet Med Assoc 2001;219:1401-1405.
  • Levy JK, Richards J, Edwards D, Elston T, Hartmann K, Rodan I, Thayer V, Tompkins M, Wolf A. Feline retrovirus testing and management. Comp Continuing Ed Practicing Veterinarian 2001;23:652-657,692.
  • Snyder PS, Levy JK, Salute ME, Gorman SP, Kubilis PS, Smail PW, George LL. Performance of serologic tests used to detect heartworm infection in cats. J Am Vet Med Assoc 2000;216:693-700.
  • Kass PH, Peterson ME, Levy JK, James K, Becker DV, Cowgill JD. Evaluation of environmental, nutritional, and host factors in cats with hyperthyroidism. J Vet Internal Med 1999;13:323-329.