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Amanda J. Kreuder

Amanda Jo Kreuder

  • Assistant Professor
  • Veterinary Microbiology and Preventive Medicine
My research lab currently focuses on performing translational microbiology research that extends from basic science through applied clinical techniques to improve the health of both animals and humans. In particular, my work currently focuses on the pathobiology of the zoonotic gastrointestinal pathogens Campylobacter and Salmonella, including the use of RNAseq, metagenomics and whole genome sequencing analysis, as well as the use of animal models in infectious disease research. My lab also focuses on clinical large animal medicine, antimicrobial stewardship, and antimicrobial resistance research.

Contact Info

2124 Vet Med
1800 Christensen Dr.


  • PhD,Veterinary Microbiology, Iowa State University, 2016
  • DACVIM, Diplomate, American College of Veterinary Internal Medicine, 2014
  • DVM, Veterinary Medicine, Iowa State University, 2008
  • BS, Dairy Science, Iowa State University, 2004

More Information



VMPM 386 - Veterinary Pathogenic Bacteriology and Mycology
VMPM 437 - Infectious Diseases and Preventive Medicine
VDPAM 486  - Introduction to Small Ruminant Production Medicine
VDPAM 495 - Advanced Small Ruminant Production Medicine

VDPAM 351- Bovine Embryo Transfer and Related Techniques
VDPAM 445 - Production Animal Clinical Medicine
VDPAM 476 - Food Animal and Camelid Field Services
VDPAM 477 - Food Animal and Camelid Medicine and Surgery
VDPAM 494 - Advanced Dairy Production Medicine

Selected Publications:

Kreuder AJ, Schleining JA, Yaeger M, Zhang Q, Plummer PJ. (2017). RNAseq reveals complex response of Campylobacter jejuni to ovine bile and gallbladder environment.  Frontiers in Microbiology, 8:940.  doi: 10.3389/fmicb.2017.00940.

Kreuder AJ, Lashley V, Yaeger MJ, Schleining JA, Plummer PJ. (2019). Histopathology and Spatial Distribution of Putative Growth Factors in the Ovine Gallbladder Following Direct Inoculation with Campylobacter jejuni IA3902. Frontiers in Veterinary Science; 6:226 doi: 10.3389/fvets.2019.00226

Xia J, Pang J, Tang Y, Wu Z, Dai L, Singh K, Xu C, Ruddell B, Kreuder AJ, Xia L, Ma X, Still-Brooks K, Sahin O, Plummer PJ, Liu Y and Zhang Q. (2019). High Prevalence of Fluoroquinolone-Resistant Campylobacter Bacteria in Sheep and Increased Campylobacter Counts in the Bile and Gallbladders of Sheep Medicated with Tetracycline in Feed. Applied and Environmental Microbiology; 16;85(11):e00008-19. doi: 10.1128/AEM.00008-19.

Kreuder AJ, Ruddell B, Mou K, Hassall A, Zhang Q, Plummer PJ. Small non-coding RNA CjNC110 influences motility, autoagglutination, AI-2 localization, hydrogen peroxide sensitivity and chicken colonization in Campylobacter jejuni. (2020) Infection and Immunity. 88:e00245-20.

Ruddell B, Hassall A, Sahin O, Zhang Q, Plummer PJ Kreuder AJ. Role of metAB in methionine metabolism and optimal chicken colonization in Campylobacter jejuni. (2020) Infection and Immunity. IAI.00542-20. doi: 10.1128/IAI.00542-20.

Naberhaus S, Krull AC, Arruda B, Arruda P, Sahin O, Schwartz K, Burrough E, Magstadt D, Matias Ferreyra F, Honorato Gatto I, Meiroz de Souza Almeida H, Wang C, Kreuder AJ. (2020). Pathogenicity and Competitive Fitness of Salmonella enterica Serovar 4,[5],12:i:- Compared to Salmonella Typhimurium and Salmonella Derby in Swine.  Frontiers in Veterinary Science. 6:502. doi: 10.3389/fvets.2019.00502

Naberhaus S, Krull AC, Bradner L, Harmon K, Arruda P, Arruda BL, Sahin O, Burrough E, Schwartz K, Kreuder AJ. (2019)  Emergence of Salmonella 4,[5],12:i:- as the primary serovar identified from swine clinical samples and development of a multiplex real time PCR for improved Salmonella serovar-level diagnostics. Journal of Veterinary Diagnostic Investigation. 31(6):818-827. doi:10.1177/1040638719883843. 

Smith JS, Viall AK, Breuer RM, Walton RA, Plummer PJ, Griffith RW, Kreuder AJ. Preliminary Investigation of Bovine Whole Blood Xenotransfusion as a Therapeutic Modality for the Treatment of Anemia in Goats. (2021) Frontiers in Veterinary Science 8:637988. doi: 10.3389/fvets.2021.637988

Olivarez JD, Kreuder AJ, Tatarniuk DM, Wulf L, Dembek K, Mochel JP and Smith JS. Pharmacokinetics and Tissue Levels of Pantoprazole in Neonatal Calves after Intravenous Administration. (2020) Frontiers in Veterinary Science 7:580735.  doi: 10.3389/fvets.2020.580735

Smith JS, Krull AC, Schleining JS, Derscheid R, Kreuder AJ. Clinical presentations and antimicrobial susceptibilities of Corynebacterium cystitidis associated with renal disease in four beef cattle. (2020) Journal of Veterinary Internal Medicine.

Poirier NC, Smith JS, Breuer R, Farrell A, Klostermann C, Tseng J, Kreuder AJ, Wiley C. Management of hematometra in a Boer Doe.  (2020) Clinical Theriogenology. 12(1):39-45.

Mosichuk AP, Smith JS, Tatarniuk DM, Troy JR, Kreuder AJ.  Meropenem administered via intravenous regional limb perfusion for septic synovitis in horses: a clinical retrospective study. (2021) Frontiers in Veterinary Science doi: 10.3389/fvets.2021.629627