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Western College of Veterinary Medicine

Research Area(s)

  • Vaccine safety and efficacy

Academic Credentials

  • DVM, University of Illinois
  • PhD, Colorado State University
  • Post Doctoral Fellowship, International Laboratory for Research on Animal Diseases, Nairobi, Kenya
  • Diplomate, American College of Veterinary Pathologists
  • Diplomate, American College of Veterinary Microbiologists (Immunology, Virology)

Publications

  • Ellis, J., Erickson, N., Gow, S., West, K., Lacoste, S., Godson, D.  2020.  Infection of calves with in-vivo passaged bovine parainfluenza-3 virus, alone or in combination with bovine respiratory syncytial virus and bovine coronavirus.  Canadian Journal of Veterinary Research, 84(3): 163-171.             

  • Ellis, J.A.  2020.  Canine IgA: Immunity in the respiratory tract, with or without you.  Advances in Small Animal Medicine and Surgery, 33(4): 1-3.  https://www.doi.org/10.1016/j.asams.2020.04.001

  • Ellis, J.A.  2020.  COVID-19: Is it raining (on) cats and dogs?  Advances in Small Animal Medicine and Surgery, 33(9): 1-3.  https://www.doi.org/10.1016/j.asams.2020.08.001

  • Erickson, N., Ellis, J., Waldner, C., Lardner, H., Gow, S., Campbell, J., Berenik, A.  2020.  A field comparison of heterologous and homologous routes of administration of modified live vaccines for the control of bovine respiratory disease in recently weaned beef calves.  Canadian Veterinary Journal, 61(5): 530-533.      

  • Erickson, N., Ellis, J., Waldner, C., Lardner, H., Gow, S., Campbell, J., Berenik, A.  2020.  Comparison of bovine viral diarrhea virus-specific antibody responses of young beef calves vaccinated with either modified live virus or inactivated virus regimens.  Canadian Veterinary Journal, 61(8): 871-874.

  • Ellis, J.  2019.  The “Normal Flora” Revisited: Microbiomes in health and disease.  Advances in Small Animal Medicine and Surgery, 32(12): 1-3.  https://www.doi.org/10.1016/j.asams.2019.12.001

  • Ellis, J.  2019.  What is the evidence that bovine coronavirus is a biologically significant respiratory pathogen in cattle?  Canadian Veterinary Journal, 60(2): 147-152.

  • Ellis, J.A.  2019.  Canine IgA and IgA deficiency: Implications for immunization against respiratory pathogens.  Canadian Veterinary Journal, 60(12): 1305-1311.

  • Gray, D., Ellis, J.A., Gow, S.P., Lacoste, S.R., Allan, G.M., Mooney, M.H.  2019.  Profiling of local disease-sparing responses to bovine respiratory syncytial virus in intranasally vaccinated and challenged calves.  Journal of Proteomics, 204: 103397.  https://www.doi.org/10.1016/j.jprot.2019.103397

  • Ellis, J., Gow, S., Berenik, A., Lacoste, S., Erickson, N.  2018.  Comparative efficacy of modified-live and inactivated vaccines in boosting responses to bovine respiratory syncytial virus following neonatal mucosal priming of beef calves.  Canadian Veterinary Journal, 59(12): 1311-1319.

  • Ellis, J.A., Chamorro, M.F., Lacoste, S., Gow, S.P., Haines, D.M.  2018.  Bovine respiratory syncytial virus-specific lgG-1 in nasal secretions of colostrum-fed neonatal calves.  Canadian Veterinary Journal, 59(5): 505-508.

  • Ellis, J.A.  2017.  How efficacious are vaccines against bovine respiratory syncytial virus in cattle?  Veterinary Microbiology, 206: 59-68.  https://www.doi.org/10.1016/j.vetmic.2016.11.030

  • Ellis, J.A., Gow, S.P., Lee, L.B., Lacoste, S., Ball, E.C.  2017.  Comparative efficacy of intranasal and injectable vaccines in stimulating Bordetella bronchiseptica-reactìve anamnestic antibody responses in household dogs.  Canadian Veterinary Journal, 58(8): 809-815.

  • Ellis, J., Gow, S., Rhodes, C., Lacoste, S., Kong, L., Musil, K., Snead, E.  2016.  Serum antibody responses to vaccinal antigens in lean and obese geriatric dogs.  Canadian Veterinary Journal, 57(5): 531-534.

  • Ellis, J.A.  2016.  Of Bordetella vaccines and emperors' wardrobes.  Advances in Small Animal Medicine and Surgery, 29(3): 1-3.  https://www.doi.org/10.1016/j.asams.2016.03.001

  • Ellis, J.A., Gow, S.P., Waldner, C.L., Shields, S., Wappel, S., Bowers, A., Lacoste, S., Xu, Z., Ball, E.  2016.  Comparative efficacy of intranasal and oral vaccines against Bordetella bronchiseptica in dogs.  Veterinary Journal, 212: 71-77.  https://www.doi.org/10.1016/j.tvjl.2016.04.004

  • McIntosh KA. Krakowka S. Ringler SS. Ellis JA.  2010.  In situ detection of urease-positive Helicobacter pylori-like organisms on swine gastric mucosa. Canadian Journal of Veterinary Research. 74(3): 237-240.

  • Harding JC. Ellis JA. McIntosh KA. Krakowka S.  2010.  Dual heterologous porcine circovirus genogroup 2a/2b infection induces severe disease in germ-free pigs. Veterinary Microbiology. 145(3-4): 209-219.

  • Ellis JA. Gow SP. Goji N.  2010.  Response to experimentally induced infection with bovine respiratory syncytial virus following intranasal vaccination of seropositive and seronegative calves.  Journal of the American Veterinary Medical Association, 236(9): 991-999.

  • Ellis JA, 2009.  Update on viral pathogenesis in BRD.  Animal Health Research Reviews, 10(2): 149-153.

  • Xue W. Ellis J. Mattick D. Smith L. Brady R. Trigo E.  2010.   Immunogenicity of a modified-live virus vaccine against bovine viral diarrhea virus types 1 and 2, infectious bovine rhinotracheitis virus, bovine parainfluenza-3 virus, and bovine respiratory syncytial virus when administered intranasally in young calves.  Vaccine, 28(22): 3784-3792.

  • Gamage LN. Ellis J. Hayes S.  2009.  Immunogenicity of bacteriophage lambda particles displaying porcine Circovirus 2 (PCV2) capsid protein epitopes.  Vaccine, 27(47): 6595-6604.

  • Ellis JA. Gow SP. Goji N. Jones C. Workman A. Henderson G. Rhodes C. Alaniz G. Meinert TR. Tucker CM.  2009.   Efficacy of a combination viral vaccine for protection of cattle against experimental infection with field isolates of bovine herpesvirus-1.  Journal of the American Veterinary Medical Association, 235(5): 563-572.

  • McIntosh KA, Tumber A, Harding JC, Krakowka S, Ellis JA, Hill JE.  2009.  Development and validation of a SYBR green real-time PCR for the quantification of porcine circovirus type 2 in serum, buffy coat, feces, and multiple tissues. Veterinary Microbiology, 133(1-2): 23-33.

  • Pozzuto T, Mueller B, Meehan B, Ringler SS, McIntosh KA, Ellis JA, Mankertz A, Krakowka S.  2009.  In utero transmission of porcine torque teno viruses.  Veterinary Microbiology, 137(3-4): 375-379.

  • Calvin W. Booker, Sameeh M. Abutarbush, Paul S. Morley, P. Timothy Guichon, Brian K. Wildman, G. Kee Jim, Oliver C. Schunicht, Tom J. Pittman, Tye Perrett, John A. Ellis, Greg Appleyard, and Deborah M. Haines.  2008.  The effect of bovine viral diarrhea virus infections on health and performance of feedlot cattle.  Canadian Veterinary Journal, 49(3): 253–260.

  • Kathleen A. McIntosh, John C.S. Harding, Sarah Parker, Steven Krakowka, Gordon Allan, and John A. Ellis.  2008.  Quantitative polymerase chain reaction for porcine circovirus-2 in swine feces in a porcine circovirus disease-affected commercial herd and a nonaffected commercial herd. Canadian Veterinary Journal, 49(12): 1189–1194.

  • Krakowka S, Ellis JA.  2008.  Evaluation of the effects of porcine genogroup 1 torque teno virus in gnotobiotic swine.  American Journal of Veterinary Research, 69(12): 1623-1629.

  • Krakowka S, Hartunian C, Hamberg A, Shoup D, Rings M, Zhang Y, Allan G, Ellis JA, 2008.  Evaluation of induction of porcine dermatitis and nephropathy syndrome in gnotobiotic pigs with negative results for porcine circovirus type 2.  American Journal of Veterinary Research, 69(12): 1615-1622.

  • Ellis JA, Allan G, Krakowka S, 2008.  Effect of coinfection with genogroup 1 porcine torque teno virus on porcine circovirus type 2-associated postweaning multisystemic wasting syndrome in gnotobiotic pigs.  American Journal of Veterinary Research, 69(12): 1608-1614.

  • Krakowka S, Ringler SS, Arumugam P, McKillen J, McIntosh K, Hartunian C, Hamberg A, Rings M, Allan G, Ellis JA, 2008.  Evaluation of Mycoplasma hyopneumoniae bacterins for porcine torque teno virus DNAs.  American Journal of Veterinary Research, 69(12): 1601-1607.

  • Harding, JCS, Auckland, CD, Tumber, A, McIntosh, KA, Parker, SE, Middleton, DM, Hill, JE, Ellis, JA, Krakowka, S, 2008. Porcine circovirus-2 DNA concentration distinguishes wasting from non-wasting pigs and is correlated with lesion distribution, severity and nucleocapsid staining intensity.  Journal of Veterinary Diagnostic Investigation, 20: 274-282.

  • Segalés J, Olvera A, Grau-Roma L, Charreyre C, Nauwynck H, Larsen L, Dupont K, McCullough K, Ellis J, Krakowka S, Mankertz A, Fredholm M, Fossum C, Timmusk S, Stockhofe-Zurwieden N, Beattie V, Armstrong D, Grassland B, Baekbo P, Allan G.  2008.  PCV-2 genotype definition and nomenclature. Veterinary Record, 162(26): 867-868.

  • Krakowka, S., Ellis, J., McNeilly F., Waldner, C., Rings, D. M., Allan, G, 2007. Myco-plasma hyopneumoniae bacterins and porcine circovirus type 2 (PCV2) infection: Induction of postweaning multisystemic wasting syndrome (PMWS) in the gnotobiotic swine model of PCV2-associated disease. Canadian Veterinary Journal, 48: 716-724.

  • McCullough, K. C., Vincent, I. E., Summerfield, A, Krakowka, S., Ellis, J. A., Segales J., Allan, G. M. 2007. La immunologia de las infecciones causadas por circovirus porcino tipo 2.  Suis, 41: 14-20.

  • Allan GM, McNeilly F, McMenamy M, McNair I, Krakowka SG, Timmusk S, Walls D, Donnelly M, Minahin D, Ellis J, Wallgren P, Fossum C.  2007. Temporal distribution of porcine circovirus 2 genogroups recovered from postweaning multisystemic wasting syndrome affected and nonaffected farms in Ireland and Northern Ireland. Journal of Veterinary Diagnostic Investigation, 19(6): 668-673.

  • Imai DM. Cornish J. Nordhausen R. Ellis J. MacLachlan NJ.  2007. Renal tubular necrosis and interstitial hemorrhage ("turkey-egg kidney") in a circovirus-infected Yorkshire cross pig.  Journal of Veterinary Diagnostic Investigation, 18(5):496-499.

  • Allan GM. Caprioli A. McNair I. Lagan-Tregaskis P. Ellis J. Krakowka S. McKillen J. Ostanello F. McNeilly F.  2007.  Porcine circovirus 2 replication in colostrum-deprived piglets following experimental infection and immune stimulation using a modified live vaccine against porcine respiratory and reproductive syndrome virus.  Zoonoses and Public Health, 54(5): 214-222.

  • Ellis J. Gow S. West K. Waldner C. Rhodes C. Mutwiri G.  2007.  Response of calves to challenge exposure with virulent bovine respiratory syncytial virus following intranasal administration of vaccines formulated for parenteral administration. Journal of the American Veterinary Medical Association, 230(2): 233-243.

  • Ellis JA. Martin BV. Waldner C. Dyer KD. Domachowske JB. Rosenberg HF.  2007.  Mucosal inoculation with an attenuated mouse pneumovirus strain protects against virulent challenge in wild type and interferon-gamma receptor deficient mice. Vaccine, 25(6): 1085-1095.