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  Home > VBS Faculty > Connie Gebhart

Connie Gebhart

VBS Faculty Gebhart Connie

email: gebha001@umn.edu

Office: 334 Veterinary Diagnostic Lab
Lab: 326 Veterinary Diagnostic Lab
1333 Gortner Avenue
St Paul, MN 55108
Phone: (612) 624-3444
Fax: (612) 625-5203
Education and Specialty Training
Ph.D. "Proliferative enteropathy"-Veterinary Microbiology, University of MN, 1987.
M.S. "Proliferative enteropathy"-Veterinary Microbiology, University of MN, 1983.
B.S. - Medical Technology, North Dakota State University. With Honors, 1977.

Major Academic Interests
Veterinary microbiology with emphases on diagnostic microbiology, molecular diagnostics, molecular pathogenesis and epidemiology.

(For a comprehensive list of  Dr. Gebharts's recent publications, refer to PubMed, a service provided by the National Library of Medicine.)
Book Chapters
McOrist, S. and C.J. Gebhart. In press. Porcine proliferative enteropathies. In G. Stevenson, et al. (ed), Diseases of Swine, 10th ed. Iowa State University Press, Ames, IA.

Gebhart, C.J. and R.M.C. Guedes. 2010. Lawsonia intracellularis and the proliferative enteropathies. In C.L. Gyles, et al., (ed.), Pathogenesis of Bacterial Infections in Animals, 4th ed. Wiley-Blackwell Publishing, Hoboken, NJ.

Recent Relevant Papers in Refereed Journals
Pusterla, N., S. Mapes and C. Gebhart. 2011. Investigation of the role of wild and feral animals in the transmission of Lawsonia intracellularis to weanling foals from farms with endemic or sporadic occurrence of equine proliferative enteropathy. Vet. Microbiol. (in press).

Pusterla, N., F.A. Vannucci, S. M. Maapes, N. Nogradi, J. Collier, J. Hill, Melissa DiFrancesco, A. White, N. Akana, G. Simonek and C. Gebhart. 2011. Evaluation of an avirulent live vaccine of Lawsonia intracellularis in the prevention of equine proliferative enteopathy in experimentally infected weanling foals. 2011. Am. J. Vet. Res. (in press).

Nogradi, N., N.M. Slovis, C.J. Gebhart, K.E. Wolsdorf, J.L. McCracken, C.F. Scoggin, P.H. Kass, S.M. Mapes, B. Toth, M.L. Lundquist and N. Pusterla. 2011. Evaluation of the field efficacy of an avirulent live Lawsonia intracellularis vaccine in foals. Vet. J. (in press) doi:10.1016/j.tvijl.2011.05.026.

Page, A.E., A.T. Loynachan, U. Bryant, H.F. Stills, A.A. Adams, C.J. Gebhart, N. Pusterla and D.W. Horohov. 2011. Characterization of the interferon gamma response to Lawsonia intracellularis using an equine proliferative enteropathy challenge model. Vet. Immunol. Immunopathol. (in press).

Pusterla, N., S. Mapes and C. Gebhart. 2011. Lawsonia intracellularis-specific interferon gamma gene expression by peripheral blood mononuclear cells in vaccinated and naturally infected foals. Vet. J. (in press) doi:10.1016/j.tvijl.2011.05.018

Page, A., N.M. Slovis, C.J. Gebhart, K. Wolfsdorf, S.M. Mapes and N. Pusterla. 2011. USerial use of serologic assays and fecal PCR assays to aid in the identification of subclinical Lawsonia intracellularis infection for targeted treatment of Thoroughbred foals and weanlings. J. Am. Vet. Med. Assoc. 238:1482-1489.

Pusterla, N., S. Mapes, C. Johnson, N. Slovis, A. Page and C. Gebhart. 2010. Comparison of feces versus rectal swabs for the molecular detection of Lawsonia intracellularis in foals with equine proliferative enteropathy. J. Vet. Diag. Invest. 22:741-744.

Wattanaphansak, S., C.J. Gebhart, J.M. Anderson, and R.S. Singer. 2010. Development of a polymerase chain reaction assay for quantification of Lawsonia intracellularis. J. Vet. Diagn. Invest. 22:598-602.

Guedes, R.M., and C.J. Gebhart. 2010. Evidence of cell-mediated immune response and specific local mucosal immunoglobulin (Ig) A production against Lawsonia intracellularis in experimentally infected swine. Can. J. Vet. Res. 74:97-101.

Pustela, N., S. Wattanaphansak, S. Mapes, J. Collier, J. Hill, M. Difrancesco, and C. Gebhart. 2010. Oral infection of weanling foals with an equine isolate of Lawsonia intracellularis, agent of equine proliferative enteropathy. J. Vet. Intern. Med. 24:622-627.

Pustela, N., R. Jackson, S.M. Mapes, J. Noland, R.M. Stenbom, and C. Gebhart. 2010. Lawsonia intracellularis: humoral immune response and fecal shedding in weanling foals following intra-rectal administration of frozen- thawed or lyophilized avirulent live vaccine. Vet. J. 186:110-112.

Wattanaphansak, S., R.S. Singer and C.J. Gebhart. 2009. Evaluation of in vitro bactericidal activity of commercial disinfectants against Lawsonia intracellularis. J. Swine Health and Prod. 18:11-17.

Pusterla, N. and C. Gebhart. 2009. Equine proliferative enteropathy caused by Lawsonia intracellularis. Equine Vet. J. 21:183-185.

Pusterla, N., J.R. Collier, S.M. Mapes, S. Wattanaphansak, C. Gebhart. 2009. Effect of administration of a virulent live vaccine of Lawsonia intracellularis on mares and foals. Vet Rec. 164:783-785.

Wattanaphansak, S., R.S. Singer, R.E. Isaacson, J. Deen, B.R. Gramm and C.J. Gebhart. 2009. In vitro assessment of the effectiveness of powder disinfectant (Stalosan F) against Lawsonia intracellularis using two different assays. Vet. Microbiol. 136:403-407.

Pusterla, N., R. Jackson, R. Wilson, J. Collier, S. Mapes and C. Gebhart. 2009. Temporal detection of Lawsonia intracellularis using serology and PCR in Thoroughbred horses residing on a farm endemic for equine proliferative enteropathy. Vet. Microbiol.136:173-176.

Wattanaphansak, S., R.S. Singer and C.J. Gebhart. 2009. In vitro antimicrobial activity against 10 North American and European Lawsonia intracellularis isolates. Vet. Microbiol. 134:305-310.



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