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Lorin Dean Warnick
Associate Professor
of Ambulatory and Production Medicine
Dept. of Population Medicine and Diagnostic Sciences
College of Veterinary Medicine
Cornell University
Ithaca, New York 14853
Tel: (607) 253-3140
Fax: (607) 253-3982
ldw3@cornell.edu
Warnick image
My current research interests are related to the epidemiology of Salmonella infections and antimicrobial resistance of enteric bacteria in dairy cattle. I teach bovine medicine, herd health and population medicine in pre-clinical courses. As a member of the Ambulatory & Production Medicine section, I provide large animal veterinary services on local farms and clinical instruction for veterinary students.
Education
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Certifications and Licenses
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Honors and Awards
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Research and Professional Experience
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Professional Society Memberships
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Selected Publications


Education
    B.S. - 1984   Microbiology, University Honors and Cum Laude; Brigham Young University, Provo, Utah.
    DVM - 1988   With High Distinction; Colorado State University, Fort Collins, Colorado.
    Ph.D. - 1994   Cornell University, Ithaca, New York. Major Field: Veterinary Medicine (Epidemiology Concentration), Minor Field: Statistics.




Certifications and Licenses
    Diplomate in the American College of Veterinary Preventive Medicine, July 1995




Honors and Awards
    Phi Zeta Veterinary Honor Society, 1987.
    Phi Kappa Phi Honor Society, 1988.
    Graduate Research Assistantship, 1991-1993; Dept. of Clinical Sciences, New York State College of Veterinary Medicine, Ithaca, New York.




Research and Professional Experience
    1995 - 1996     Statistical and Experimental Design Service Laboratory Faculty Coordinator; Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, Virginia.
    1994- 1996     Assistant Professor of Large Animal Clinical Sciences; Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, Virginia.
    1997- 1999     Ambulatory and Production Medicine Section Chief; College of Veterinary Medicine, Cornell University, Ithaca, New York.
    1996 - 2002     Assistant Professor of Ambulatory and Production Medicine; College of Veterinary Medicine, Cornell University, Ithaca, New York (joint appointment in the Section of Epidemiology).
    2002 - present     Associate Professor of Ambulatory and Production Medicine; College of Veterinary Medicine, Cornell University, Ithaca, New York (joint appointment in the Section of Epidemiology).




Professional Society Memberships
    American Veterinary Medical Association
    American Association of Bovine Practitioners
    American Dairy Science Association
    Association of Teachers of Preventive Veterinary Medicine and Public Health




Graduate Field Memberships
    Comparative Biomedical Sciences
    Food Science and Technology
    Epdemiology (Minor Field)




Selected Publications
  1. Delgado-Lecaroz R, Warnick LD, Guard CL, Smith MC, Barry DA. Cross-sectional study of the association of abomasal displacement or volvulus with serum electrolyte and mineral concentrations in dairy cows. Canadian Veterinary Journal 41:301-305;2000.
  2. Liljebjelke KA, Warnick LD, Witt MF. Antibiotic residues in milk following bulbar subconjunctival injection of procaine penicillin G in dairy cows. Journal of the American Veterinary Medical Association 217:369-371;2000.
  3. Flatland B, Leib MS, Warnick LD, Sponenberg DP. Efficacy of the bromosulfophthalein (BSP) 30-minute retention test for the diagnosis of hepatobiliary disease in dogs. Journal of Veterinary Internal Medicine 14:560-568;2000.
  4. Allore HG, Warnick LD, Hertl J, Gröhn YT. Informative censoring in survival analysis: A simulation study of the effect of milk yield on conception. Preventive Veterinary Medicine 49:223-234;2001.
  5. Warnick LD, Crofton LM, Pelzer KD, Hawkins MJ. Risk factors for clinical salmonellosis in Virginia, USA cattle herds. Preventive Veterinary Medicine 49:259-275;2001.
  6. Warnick LD, Janssen D, Guard CL, Gröhn YT. The effect of lameness on milk production in dairy cows. Journal of Dairy Science. 84:1988-1997;2001.
  7. Allore HG, Haferkamp-Wise C, Gröhn YT, Warnick LD. Teaching dairy herd health dynamics using a web-based program. Journal of Veterinary Medical Education 28:140-144;2001.
  8. Aubry P, Warnick LD, Guard CL, Hill B, Witt MF. A field trial to evaluate the health and performance of young dairy calves vaccinated with a modified live Mannheimia haemolytica and Pasteurella multocida vaccine. Journal of the American Veterinary Medical Association. 219:1739-1742;2001.
  9. Goodrich LR, Nixon AJ, Fubini SL, Ducharme NG, Fortier LA, Warnick LD, Ludders JW. Morphine and detomidine injected epidurally decreases postoperative hindlimb lameness in horses following bilateral stifle arthroscopy. Veterinary Surgery. 31:232-239;2002.
  10. Warnick LD, Nydam D, Maciel AE, Guard CL, Wade SE. Udder cleft dermatitis and sarcoptic mange in a dairy herd. Journal of the American Veterinary Medical Association. 221:273-276;2002.
  11. Ketzis JK, Taylor A, Bowman DD, Brown DL, Erb HN, Warnick LD. Chenopodium ambrosiodes and its essential oil as treatments for Haemonchus contortus and mixed adult-nemotode infections in goats. Small Ruminant Research. 44:193-200;2002.
  12. Christodoulopoulos G, Warnick LD, Papaioannou N, Fthenakis GC. Tilmicosin administration to lambs with respiratory infection: safety and efficacy considerations. Journal of Veterinary Pharmacology and Therapeutics. 25:393-397;2002.
  13. Warnick LD, Kanistanon K, McDonough PL, Power L. Effect of previous antimicrobial treatment on fecal shedding of Salmonella enterica subsp. enterica serogroup B in New York dairy herds with recent clinical salmonellosis. Preventive Veterinary Medicine 56:285-297;2003.
  14. Warnick LD, Kaneene JB, Ruegg PL, Wells SJ, Fossler C, Halbert L, Greene A. Evaluation of herd sampling for Salmonella isolation on Midwest and Northeast US dairy farms. Preventive Veterinary Medicine 60:195-206;2003.
  15. Zwald AG, Ruegg PL, Kaneene JB, Warnick LD, Wells SJ, Fossler C, Halbert LW. Management and reported antimicrobial usage on conventional and organic dairy farms. Journal of Dairy Science 87: 191-201;2004.
  16. Roberson J, Warnick LD, Moore G. Mild to moderate clinical mastitis: Efficacy of intramammary amoxicillin, frequent milk-out, intramammary amoxicillin and frequent milk-out compared to no treatment. Journal of Dairy Science 87: 583-592;2004.
  17. Fossler C, Wells SJ, Kaneene JB, Ruegg PL, Warnick LD, Bender J, Godden SM, Halbert LW, Campbell A, Zwald A. Prevalence of Salmonella spp on conventional and organic dairy farms. Journal of the American Veterinary Medical Association 225: 567-573; 2004.
  18. Gardner CE, Nydam DV, Ellis RG, Kelsey S, McDonough PL, Warnick LD. Case reportManagement of an outbreak of salmonellosis on a commercial calf raising unit. Bovine Practitioner 38:147-154;2004.
  19. Booth CJ, Warnick LD, Grohn YT, Maizon DO, Guard CL, Janssen D. Effect of lameness on survival in dairy cows. Journal of Dairy Science 87:4115-4122;2004.
  20. Fossler CP, Wells SJ, Kaneene JB, Ruegg PL, Warnick LD, Eberly LE, Godden SM, Halbert LW, Campbell AM, Geiger AM. Cattle and environmental sample-level factors associated with presence of Salmonella in a multi-state study of conventional and organic dairy farms. Preventive Veterinary Medicine 67:39-53;2005.
  21. Fossler CP, Wells SJ, Kaneene JB, Ruegg PL, Warnick LD, Bender JB, Eberly LE, Godden SM, Halbert LW. Herd-level factors associated with isolation of Salmonella in a multi-state study of conventional and organic dairy farms I. Salmonella shedding in cows. Preventive Veterinary Medicine 70:257-277;2005.
  22. Fossler CP, Wells SJ, Kaneene JB, Ruegg PL, Warnick LD, Bender JB, Eberly LE, Godden SM, Halbert LW. Herd-level factors associated with isolation of Salmonella in a multi-state study of conventional and organic dairy farms II. Salmonella shedding in calves. Preventive Veterinary Medicine 70:279-291;2005.
  23. Sukhnanand S, Alcaine S, Su W, Hof J, Craver MPJ, Warnick LD, McDonough PL, Boor KJ, Wiedmann M. DNA sequence-based subtyping and evolutionary analysis of selected Salmonella enterica serotypes. Journal of Clinical Microbiology 43:3688-3698;2005.
  24. Halbert LW, Kaneene JB, Ruegg PL, Warnick, LD, Wells SJ, Mansfield L, Green A, Geiger A, Fossler C. The comparison of automated microbroth dilution and agar dilution for antimicrobial susceptibility of Campylobacter jejuni isolated from dairy sources. Journal of Antimicrobial Chemotherapy 56:686-691;2005.
  25. Alcaine SD, Sukhnanand SS, Warnick LD, Su W-L, McDonough P, and Wiedmann M. Ceftiofur resistant Salmonella isolated from dairy farms represent multiple widely distributed subtypes that evolved by independent horizontal gene transfer. Antimicrobial Agents and Chemotherapy 49:4061-4067;2005.
  26. Rosenbaum A, Guard CL, White ME, Njaa B, McDonough PL, Warnick LD. Pyelonephritis in dairy cows: A slaughterhouse study. Veterinary Record 157:652-655;2005.
  27. Cho S, Bender JB, Diez-Gonzalez F, Fossler CP, Hedberg CW, Kaneene JB, Ruegg PL, Warnick LD, Wells SJ. Prevalence and characterization of Escherichia coli O157 isolates from Minnesota Dairy Farms and County Fairs. Journal of Food Protection 69:252-259;2006.
  28. Halbert LW, Kaneene JB, Linz J, Mansfield LS, Wilson D, Ruegg PL, Warnick, LD, Wells SJ, Fossler CP, Campbell AM, Geiger-Zwald AM. Genetic mechanisms contributing to reduced tetracycline susceptibility of Campylobacter isolated from organic and conventional dairy farms in the Midwestern and Northeastern United States. Journal of Food Protection 69:482-488;2006.
  29. Halbert LW, Kaneene JB, Ruegg PL, Warnick, LD, Wells SJ, Mansfield LS, Fossler CP, Campbell AM, Geiger-Zwald AM. Evaluation of antimicrobial susceptibility patterns in Campylobacter spp isolated from dairy cattle and farms managed organically and conventionally in the midwestern and northeastern United States. Journal of the American Veterinary Medical Association 228:1074-1081;2006.
  30. Ray KA, Warnick LD, Mitchell R, Kaneene JB, Ruegg PL, Wells SJ, Fossler CP, Halbert LW, May K. Antimicrobial susceptibility of Salmonella from organic and conventional Dairy Farms. Journal of Dairy Science 89:2038-2050;2006.
  31. Goodrich LR, Brower-Toland BD, Warnick L, Robbins PD, Evans CH, Nixon AJ. Direct adenovirus mediated IGF-I gene transduction of synovium induces persisting synovial fluid IGF-I ligand elevations. Gene Therapy 13:1253-1262;2006.
  32. Bicalho R, Cheong SH, Warnick LD, Nydam DV, Guard CL. The effect of digit amputation or arthrodesis surgery on culling and milk production in Holstein dairy cows. Journal of Dairy Science 89:2596-2602;2006.
  33. Cho S, Bender JB, Diez-Gonzalez F, Fossler CP, Hedberg CW, Kaneene JB, Ruegg PL, Warnick LD, Wells SJ. Prevalence of shiga toxin-encoding bacteria and shiga toxin-producing Escherichia coli isolates from dairy farms and county fairs. Veterinary Microbiology 20: 289-298; 2006.
  34. Warnick LD, Nielsen LR, Nielsen J, Greiner M. Simulation model estimates of test accuracy and predictive values for the Danish Salmonella surveillance program in dairy herds. Preventive Veterinary Medicine 77:284-303; 2006.
  35. Alcaine, SD, Y Soyer, LD Warnick, W-L Su, SS Sukhnanand, J Richards, ED Fortes, P McDonough, TP Root, NB Dumas, Y Grohn, and M Wiedmann. 2006. Multilocus sequence typing supports that cattle and human associated Salmonella represent distinct and overlapping populations. Appl. Environ. Micro. 72:7575-7585; 2006.
  36. Bicalho RC, Cheong SH, Warnick LD, Guard CL. Evaluation of progesterone supplementation in a prostaglandin F2? -based presynchronization protocol before timed insemination. Journal of Dairy Science 90:1193-1200;2007.
  37. Ray KA, Warnick LD, Mitchell R, Kaneene JB, Ruegg PL, Wells SJ, Fossler CP, Halbert LW, May K. Salmonella Antimicrobial Resistance on Midwest and Northeast US Dairy Farms. Preventive Veterinary Medicine 79:204-223;2007.
  38. Alcaine, SD, Warnick LD, Wiedmann M. Antimicrobial Resistance in Salmonella: A Review. Journal of Food Protection 70:780-790;2007.
  39. Bicalho RC, Galvão KN, Cheong SH, Gilbert RO, Warnick LD, and Guard CL. Effect of stillbirths on dam's survival and reproduction performance in Holstein dairy cows. Journal of Dairy Science 90:2797-2803;2007.
  40. Nielsen LR, Warnick LD, Greiner M. Risk factors for changing test classification in the Danish surveillance program for Salmonella in dairy herds. Journal of Dairy Science 90:2815-2825;2007.
  41. Cho S, Fossler CP, Diez-Gonzalez F, Wells SJ, Hedberg CW, Kaneene JB, Ruegg PL, Warnick LD, Bender JB. Antimicrobial susceptibility of shiga toxin producing Escherichia coli isolated from organic and conventional dairy cattle farms and county fairs in Minnesota. Foodborne Pathogens and Disease 4:178-186;2007.
  42. Davis MA, Besser TE, Eckmann K, MacDonald K, Green D, Hancock DD, Baker KNK, Warnick LD, Wiedmann M, Soyer Y, Call DR. Emerging multi-drug resistant strain of Salmonella enterica serovar Typhimurium in the Pacific Northwest United States. Emerging Infectious Disease 13:1583-1586;2007.
  43. Bicalho RC, Cheong SH, Galvão KN, Warnick LD, and Guard CL. The detrimental effects of twin parturition in Holstein cows are increased by the presence of at least one dead twin at birth. Journal of the American Veterinary Medical Association 231:1390-1397;2007.

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Last Update January 4, 2008

Department of Population Medicine & Diagnostic Sciences
College of Veterinary Medicine - Upper Tower Road - Cornell University - Ithaca, NY 14853-6401
Phone: 607.253.4136
 
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