Publications

Peer Reviewed Articles

(partial listing)

  1. Mollenkopf DF, JM Mirecki, JB Daniels, JA Funk, SC Henry, GE Hansen, PR Davies, TS Donovan, and TE Wittum, Escherichia coli and Klebsiella pneumoniae producing CTX-M cephalosporinase from swine finishing barns and their association with antimicrobial use. Appl Environ Micro 2013;79:1052-1054.
  2. Wittum TE. The challenge of regulating agricultural ceftiofur use to slow the emergence of resistance to extended-spectrum cephalosporins. Appl Environ Micro 2012;78:7819-7821.
  3. Wittum TE, DF Mollenkopf, MM Erdman. Detection of Salmonella enterica isolates producing CTX-M cephalosporinase in US livestock populations. Appl Environ Micro 2012;78:7487-7491.
  4. Mollenkopf, DF; MF Weeman; JB Daniels; MJ Abley; JL Mathews; WA Gebreyes; TE Wittum. Variable within- and between-Herd Diversity of CTX-M Cephalosporin-Bearing Escherichia coli Isolates from Dairy Cattle. Appl Environ Micro 2012;78:4552-4560.
  5. Walker, WL, WB Epperson, TE Wittum, LK Lord, PJ Rajala-Schultz, and J Lakritz. Characteristics of dairy calf ranches: Morbidity, mortality, antibiotic use practices, and biosecurity and biocontainment practices. J Dairy Sci 2012;95:2204-2214.
  6. Abley MJ; TE Wittum; SJ Moeller; HN Zerby; JA Funk. Quantification of Campylobacter in Swine before, during, and after the Slaughter Process. J Food Protect 2012;75:139-143.
  7. Abley MJ; TE Wittum; HN Zerby; JA Funk. Quantification of Campylobacter and Salmonella in cattle before, during and after the slaughter process. Foodborne Pathogens and Disease 2012;9:113-119.
  8. Landers, TF; BA Cohen; TE Wittum; EL Larson. Antibiotic use in food animals: Perspective, policy & potential. Public Health Reports 2012;127:4-22.
  9. Lutz, EA; MJ McCarty; DF Mollenkopf; JA Funk; WA Gebreyes; TE Wittum. Ceftiofur use in finishing swine barns and the recovery of fecal Escherichia coli or Salmonella spp. resistant to ceftriaxone. Foodborne Pathogens and Disease 2011;8:1229-1234.
  10. Tadesse, DA; PB Bahnson; JA Funk; S Thakur; WE Morrow; TE Wittum; FJ DeGraves; PJ Rajala-Schultz; WA Gebreyes. Prevalence and Antimicrobial Resistance Profile of Campylobacter spp. Isolated from Conventional and Antimicrobial Free Production Systems from Different US Regions. Foodborne Pathogens and Disease 2011;10;367-374.
  11. Morley, PS; DA Dargatz; DR Hyatt; GA Dewell; JG Patterson; BA Burgess; TE Wittum. Effects of Restricted Antimicrobial Exposure on Antimicrobial Resistance in fecal Escherichia coli from Feedlot Cattle. Foodborne Pathogens and Disease 2011;8:87-98.
  12. Mollenkopf, DM; KE Kleinhenz; JA Funk; WA Gebreyes; TE Wittum. Salmonella enterica and Escherichia coli Harboring blaCMY in Retail Beef and Pork Products. Foodborne Pathog Dis 2011;8:333-336.
  13. Wittum, TE; DF Mollenkopf; JB Daniels; AE Parkinson;  JL Mathews; PR Fry; MJ Abley; WA Gebreyes. CTX-M-Type Extended-Spectrum β-Lactamases Present in Escherichia coli from the Feces of Cattle in Ohio, United States. Foodborne Pathogens and Disease 2010;7:1575-1579.
  14. Mollenkopf, DM; C Glendening; TE Wittum; JA Funk; LA Tragesser; PS Morley. Association of dry cow therapy with the antimicrobial susceptibility of fecal coliform bacteria in dairy cows. Prev Vet Med 2010;96:30.
  15. Landers, TF; AE Hoet; TE Wittum. Swab Type, Moistening, and Preenrichment for Staphylococcus aureus on Environmental Surfaces. J Clin Micro 2010;48:2235-2236.
  16. Harvey, R, JA Funk, TE Wittum, AE Hoet. A metagenomic approach for determining prevalence of tetracycline resistance genes in the fecal flora of conventionally raised feedlot steers and feedlot steers raised without antimicrobials. Am J Vet Res 2009;70:198–202.
  17. Heider, LC, AE Hoet, TE Wittum, ML Khaitsa, BC Love, CL Huston, PS Morley, JA Funk, WA Gebreyes. Genetic and Phenotypic Characterization of the blaCMY Gene from Escherichia coli and Salmonella enterica Isolated from Food-Producing Animals, Humans, the Environment, and Retail Meat. Foodborne Pathog Dis 2009;6:1235-1240.
  18. Pandya, M, TE Wittum, DA Tadesse, WA Gebreyes, AE Hoet. Environmental Salmonella surveillance in the Ohio State University veterinary teaching hospital. Vector Borne Zoonotic Dis 2009;9:649-654.
  19. Heider, LC, JA Funk, AE Hoet, RW Meiring, WA Gebreyes, and TE Wittum. Escherichia coli and Salmonella enterica with reduced susceptibility to ceftriaxone among Ohio dairy farms. Am J Vet Res 2009;70:389-393.
  20. Heider, LC, RW Meiring, AE Hoet, WA Gebreyes, JA Funk, and TE Wittum. Evaluation of vaccination with a commercial subunit vaccine on shedding of Salmonella enterica in subclinically infected dairy cows. J Am Vet Med Assoc 2008;233:466–469.
  21. Chen, J, Z Yu, FC Michel, T Wittum, and M Morrison. Development and Application of Real-Time PCR Assays for Quantification of erm Genes Conferring Resistance to Macrolides-Lincosamides-Streptogramin B in Livestock Manure and Manure Management Systems. Appl Environ Micro 2007;73:4407-4416.
  22. Funk, JA, TE Wittum, JT LeJeune, PJ Rajala-Schultz, A Bowman, A Mack. Evaluation of stocking density and subtherapeutic chlortetracycline on Salmonella enterica subsp. enterica shedding in growing swine. Vet Micro 2007;124:202-208.
  23. Keen, JE, TE Wittum, JR Dunn, JL Bono, and LM Durso. Shiga-toxigenic Escherichia coli (STEC) O157 prevalence in US agricultural fair livestock and persistence in the post-fair environment. Emerging Inf Dis 2006;12:780-786.