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Sara Lawhon

Associate Professor


Mailstop: 4467

Department: VTPB

Photo of Lawhon, Sara


  • Ph.D. Comparative Biomedical Science, North Carolina State University 2003
  • D.V.M. Veterinary Medicine, Texas A&M University 1997
  • B.S. Veterinary Science, Texas A&M University 1993
  • B.S. Biomedical Science, Texas A&M University 1991


  • Diplomate, American College of Veterinary Microbiologists
  • Texas Board of Veterinary Medical Examiners
  • Texas Veterinary Medical License: 8152

Scholarly Interests

My work centers on understanding how bacteria cause disease in people and animals with the goal of improving animal and human health. My laboratory group studies antimicrobial resistance and stewardship and Salmonella and Staphylococcus pathogenesis. We are particularly interested in how bacteria communicate with each other (quorum sensing) and how they respond to environmental signals found in the host.


Systems Biology Analysis of Temporal In vivo Brucella melitensis and Bovine Transcriptomes Predicts host:Pathogen Protein-Protein Interactions.
Carlos A Rossetti, Kenneth L Drake, Sara D Lawhon, Jairo S Nunes, Tamara Gull, Sangeeta Khare, Leslie G Adams
Frontiers in microbiology. 2017 8:1275.
Agreement between microscopic examination and bacterial culture of bile samples for detection of bactibilia in dogs and cats with hepatobiliary disease.
Medora B Pashmakova, Julie Piccione, Micah A Bishop, Whitney R Nelson, Sara D Lawhon
Journal of the American Veterinary Medical Association. 2017 250(9):1007-1013.
Faecal Campylobacter shedding among dogs in animal shelters across Texas.
A M Leahy, K J Cummings, L D Rodriguez-Rivera, S A Hamer, S D Lawhon
Zoonoses and public health. 2017
Panfungal Polymerase Chain Reaction for Identification of Fungal Pathogens in Formalin-Fixed Animal Tissues.
Courtney Meason-Smith, Erin E Edwards, Caitlin E Older, Mackenzie Branco, Laura K Bryan, Sara D Lawhon, Jan S Suchodolski, Gabriel Gomez, Joanne Mansell, Aline Rodrigues Hoffmann
Veterinary pathology. 2017 54(4):640-648.
Multilaboratory Survey To Evaluate Salmonella Prevalence in Diarrheic and Nondiarrheic Dogs and Cats in the United States between 2012 and 2014.
Renate Reimschuessel, Michael Grabenstein, Jake Guag, Sarah M Nemser, Kyunghee Song, Junshan Qiu, Kristin A Clothier, Barbara A Byrne, Stanley L Marks, Kyran Cadmus, Kristy Pabilonia, Susan Sanchez, Sreekumari Rajeev, Steve Ensley, Timothy S Frana, Albert E Jergens, Kimberly H Chappell, Siddhartha Thakur, Beverly Byrum, Jing Cui, Yan Zhang, Matthew M Erdman, Shelley C Rankin, Russell Daly, Seema Das, Laura Ruesch, Sara D Lawhon, Shuping Zhang, Timothy Baszler, Dubraska Diaz-Campos, Faye Hartmann, Ogi Okwumabua
Journal of clinical microbiology. 2017 55(5):1350-1368.
Respiration of Microbiota-Derived 1,2-propanediol Drives Salmonella Expansion during Colitis.
Franziska Faber, Parameth Thiennimitr, Luisella Spiga, Mariana X Byndloss, Yael Litvak, Sara Lawhon, Helene L Andrews-Polymenis, Sebastian E Winter, Andreas J Bäumler
PLoS pathogens. 2017 13(1):.
Salmonella Typhimurium and Multidirectional Communication in the Gut.
Elena V Gart, Jan S Suchodolski, Thomas H Welsh, Robert C Alaniz, Ronald D Randel, Sara D Lawhon
Frontiers in microbiology. 2016 7:1827.
Evaluation of Pyrrolidonyl Arylamidase Activity in Staphylococcus delphini.
Samantha T Compton, Stephen A Kania, Amy E Robertson, Sara D Lawhon, Stephen G Jenkins, Lars F Westblade, David A Bemis
Journal of clinical microbiology. 2016 55(3):859-864.
A Brucella spp. Isolate from a Pac-Man Frog (Ceratophrys ornata) Reveals Characteristics Departing from Classical Brucellae.
Pedro F Soler-Lloréns, Chris R Quance, Sara D Lawhon, Tod P Stuber, John F Edwards, Thomas A Ficht, Suelee Robbe-Austerman, David O'Callaghan, Anne Keriel
Frontiers in cellular and infection microbiology. 2016 6:116.
The skin microbiome in allergen-induced canine atopic dermatitis.
Felipe Pierezan, Thierry Olivry, Judith S Paps, Sara D Lawhon, Jing Wu, Jörg M Steiner, Jan S Suchodolski, Aline Rodrigues Hoffmann
Veterinary dermatology. 2016 27(5):332-.
Count of generic Escherichia coli on spinach at the preharvest level determined by the multi-factorial effect of ambient temperature, precipitation, farm management and environmental factors.
Park, S., Navratil, S., Gregory, A., Bauer, A., Sinath, I., Szonyi, B., Nightingale, K., Anciso, J., Jun, M., Han, D., Lawhon, S., Ivanek, R.
Applied and Environmental Microbiology . 2015
Plane of nutrition influences the performance, innate leukocyte responses, and resistance to an oral Salmonella enterica serotype Typhimurium challenge in Jersey calves.
Ballou, M.A., Hanson, D.L., Cobb, C.J., Obeidat, B.S., Sellers, M.D., Pepper-Yowell, A.R, Carroll, J.A., Earleywine, T.J., Lawhon, S.D.
Journal of Dairy Science. 2015
Amikacin Resistance in Staphylococcus pseudintermedius Isolated from Dogs.
Gold RM, Cohen ND, Lawhon SD
J Clin Microbiol. 2014 52(10):3641-6.
Intra-articular infection by Scedosporium prolificans in a horse
Lawhon, S.D., Sutton, D.A., Halbert, N.D., Watkins, J.P.
Journal of Equine Veterinary Science . 2011 31(31):696-699.
Antimicrobial activity of tulathromycin and 14 other antimicrobials against virulent Rhodococcus equi in vitro.
Kelly L Carlson, Kyle R Kuskie, Keith M Chaffin, Melissa C Libal, Steeve Giguère, Sara D Lawhon, Noah D Cohen
Veterinary therapeutics : research in applied veterinary medicine. 2010 11(2):.
Streptococcus shiloi, the name for an agent causing septicemic infection in fish, is a junior synonym of Streptococcus iniae
Eldar, A., Frelier, P. F., Assenta, L., Varner, P.W., Lawhon, S., Bercovier, H.
Int J Syst Bacteriol.. 1995 45(4):840-2.
The Effect of Storage Time, Temperature, and Transport Tube Type on Canine Urine Samples Submitted for Quantitative Urine Culture.
Duff, C. Bishop, M., Pack, J.D.2, Cook, A.K., Lawhon, S.D.
Journal of the American Veterinary Medical Association .

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