Extension Associate Professor: Food Safety Specialist

Omar is a member of the National Advisory Committee on Microbiological Criteria for Foods and a Certified HACCP Auditor (American Society for Quality). He is also a Lead Instructor for Foreign Supplier Verification Program, Preventive Control for Human Food for Preventive Control for Human Food (Food Safety Preventive Control Alliance), Sprout Safety training (Sprout Safety Alliance), HACCP classes (International HACCP Alliance), and Acidified Food training (Better Process Control School). He has taught food safety, bioinformatics, biostatistics, microbial risk assessment and management, and introductory HACCP classes for about 20 years. Omar has delivered numerous international presentations and short training courses on food safety in Argentina, Bangladesh, Brazil, Canada, Chile, China, Colombia, India, Mexico and Thailand. His research expertise is the identification, typing and control of foodborne pathogens, with emphasis on Campylobacter spp. Omar is also editor-in-chief of the new journal Microbial Risk Analysis, published by Elsevier; and affiliate associate professor at the Institute of Microbiology, Universidad Austral, Valdivia, Chile. He has worked for GMA (ex National Food Processors Association), Neogen Corporation, Auburn University (associate professor, Department of Poultry Science) and Alabama State University (associate professor, Ph.D. Program in Microbiology).

Publications

  • Oyarzabal, O.A., C. Henry. 2017. Considering in-house food pathogen testing? Answer these 8 questions. FoodOnline Magazine. Published August 10. Online at: https://www.foodonline.com/doc/considering-in-house-food-pathogen-testing-answer-these-questions-0001
  • Oyarzabal, O.A. 2017. Whole genome sequencing will make safer… Just not immediately. FoodOnline Magazine. Published May 19. Online at: https://www.foodonline.com/doc/whole-genome-sequencing-will-make-food-safer-just-not-immediately-0001
  • Oyarzabal, O.A. and S. Backert. 2017. Varying pathogenicity of Campylobacter jejuni isolates.  In: Gurtler, J.B., M.P. Doyle and J.L. Kornacki, (eds). Foodborne Pathogens: Virulence Factors and Host Susceptibility. Springer Publishing: New York, New York. DOI 10.1007/978-3-319-56836-2.
  • Oyarzabal, O. A., E. Rowe. 2017. Evaluation of an active learning module to teach Hazard and Risk in Hazard Analysis and Critical Control Points (HACCP) classes. Heliyon 3 e00297. Read online.
  • Oyarzabal, O. A. 2017. How FSMA is changing hazard analysis. March 1, 2017. FoodOnline Magazine. Read online.
  • Oyarzabal, O. A. and C. D. Carrillo. 2017. Chapter 4. Isolation, identification, and typing of Campylobacter strains from food samples. In: Campylobacter: Features, Detection, and Prevention of Foodborne Disease, pp 61-83. G. Klein (ed). Elsevier. ISBN: 978-0-12-803623-5.
  • Carrillo, C. D., R. Kenwell, I. Iugovaz, and O. A. Oyarzabal. 2017. Recovery of Campylobacter spp. from food and environmental sources. In: Methods in Molecular Biology, Campylobacter jejuni: Methods and Protocols, pp 9-18. J. Butcher, A. Stinzi (eds). Humana Press, a part of Springer Science+Business Media.
  • Oyarzabal, O. A., and S. Backert. 2016. Control of Campylobacter spp. in commercial poultry production. In: Campylobacter spp. and Related Organisms in Poultry: Pathogen-Host Interactions, Diagnosis and Epidemiology, pp 137-149. B. B. Fonseca, H. Fernandez, D. A. Rossi (eds). Springer International Publishing, Switzerland.
  • Oyarzabal O. A., and H. Fernández. 2016. Isolation and identification of Campylobacter spp. in poultry. In: Campylobacter spp. and Related Organisms in Poultry: Pathogen-Host Interactions, Diagnosis and Epidemiology, pp 19-35. B. B. Fonseca, H. Fernandez, D. A. Rossi (eds). Springer International Publishing, Switzerland.
  • Oyarzabal, O. A. 2015. Understanding the Differences between Hazard Analysis and Risk Assessment. Food Safety Magazine's eDigest, November 3. Read online.
  • Oyarzabal, O. A. 2015. Food Safety and the Perception of Risk. Opinion piece published on Food Safety News. November 3. Read online.
  • Oyarzabal, O. A. 2015. Antibiotic Resistance: Let’s Change the Way We Understand It. Opinion piece published on Food Safety News. August 28. Read online.
  • Oyarzabal, O. A. 2015. Using dice games to teach hazards, risk and outcomes in HACCP classes. Journal of Extension [On-line] 53(4) Article 4TOT7.
  • Zhou, P., and O. A. Oyarzabal. 2015. Application of Pulsed Field Gel Electrophoresis to Type Campylobacter jejuni. In: Methods in Molecular Biology, Pulsed Field Gel Electrophoresis, Volume 1301, pp 139-156. K. Jordan, M. Dalmasso (eds). Humana Press, a part of Springer Science+Business Media.
  • Oyarzabal, O. A., S. Kathariou. 2014. DNA Methods in Food Safety: Molecular Typing of Foodborne and Waterborne Bacterial Pathogens. Wiley-Blackwell. West Sussex, United Kingdom.
  • Carrillo, C. D., and O. A. Oyarzabal. 2014. Molecular typing of Campylobacter jejuni. In: DNA Methods in Food Safety: Molecular Typing of Foodborne and Waterborne Bacterial Pathogens. Oyarzabal O. A., Kathariou S. (eds). Wiley Blackwell. Wiley-Blackwell. West Sussex, United Kingdom.
  • Kooken, J., K. Fox, A. Fox, D. Altomare, K. Creek, D. Wunschel, S. Pajares-Merino, I. Martínez-Ballesteros, J. Garaizar, O. A. Oyarzabal, and M. Samadpour. 2014. Identification of staphylococcal species based on variations in protein sequences (mass spectrometry) and DNA sequence (sodA microarray). Molecular and Cellular Probes 28:73-82.
  • Hamon, M., O. A. Oyarzabal, and J. W. Hong. 2013. Nanoliter/picoliter scale fluidic systems for food safety. Chapter 8. In: Advances in Nanotechnology for Agriculture. pp. 145-165. ACS Symposium Series, Vol. 1143. American Chemical Society Publications. Washington, DC.
  • Gharst, G. A., O. A. Oyarzabal, S. K. Hussain. 2013. Review of current methodologies to isolate and identify Campylobacter spp. from foods. Journal of Microbiological Methods 95:84-92 [PDF] [Pubmed].
  • Tegtmeyer, N., F. Rivas Traverso, M. Rohde, O. A. Oyarzabal, N. Lehn, W. Schneider-Brachert, R. L. Ferrero, J. G. Fox, D. E. Berg, and S. Backert. 2013. Electron microscopy, genetic and protein expression analysis of Helicobacter acinonychis strains from Bengal tiger. PLoS ONE 8(8): e71220. doi:10.1371/journal.pone.0071220 [PDF] [Pubmed].
  • Oyarzabal, O. A., A. Williams, P. Zhou, M. Samadpour. 2013. Improved protocol for isolation of Campylobacter spp. from retail broiler meat and use of pulsed field gel electrophoresis for the typing of isolates. Journal of Microbiological Methods 95:76-83 [PDF] [Pubmed].
  • Oyarzabal, O. A., S. Backert. 2012. Microbial Food Safety: An Introduction. Springer-Verlag. New York, NY. ISBN 13: 9781461411765.
  • Oyarzabal, O. A., and C. Battie. 2012. Immunological methods for the detection of Campylobacter spp. – Current applications and potential use in biosensors. In: Trends in Immunolabelled and Related Techniques, E. Abuelzein (ed) pp 203-226. InTech (ISBN 978-953-51-0570-1) [PDF].
  • Oyarzabal, O. A. 2012. Emerging and reemerging foodborne pathogens. In: Microbial Food Safety: An Introduction, O. A. Oyarzabal and S. Backert (eds), pp 3-12. Springer-Verlag. New York, NY. ISBN 13: 9781461411765.
  • Oyarzabal, O. A. 2012. Methods to type foodborne pathogens for epidemiological studies. In: Microbial Food Safety: An Introduction, O. A. Oyarzabal and S. Backert (eds), pp 57-71. Springer-Verlag. New York, NY. ISBN 13: 9781461411765.
  • Aly, S.A., N. Debavalya, S.-J. Suh, O. A. Oyarzabal, and D. M. Booth. 2012. Molecular mechanisms of antimicrobial resistance in fecal Escherichia coli of healthy dogs after enrofloxacin or amoxicillin administration. Canadian Journal of Microbiology 58(11):1288-1294.
  • Williams, A., and O. A. Oyarzabal. 2012. Prevalence of Campylobacter spp. in skinless, boneless retail broiler meat from 2005 through 2011 in Alabama, USA. BMC Microbiology 12:184 [PDF] [Pubmed].
  • Hirsch, C., N. Tegtmeyer, M. Rohde, M. Rowland, O. A. Oyarzabal, S. Backert. 2012. Live Helicobacter pylori in the root canal of endodontic-infected deciduous teeth. Journal of Gastroenterology 47(8):936-40 [PDF] [Pubmed].
  • Boehm, M., B. Hoy, M. Rohde, N. Tegtmeyer, K. T. Bæk, O. A. Oyarzabal, L. Brøndsted, S. Wessler, and S. Backert. 2012. Rapid paracellular transmigration of Campylobacter jejuni across polarized epithelial cells without affecting TER: role of proteolytic-active HtrA cleaving E-cadherin but not fibronectin. Gut Pathogens 4:3 [PDF] [biosignaling.com].
  • Krause-Gruszczynska, M., M. Boehm, M. Rohde, N. Tegtmeyer, S. Takahashi, L. Buday, O. A. Oyarzabal, and S. Backert. 2011. The signaling pathway of Campylobacter jejuni-induced Cdc42 activation: Role of fibronectin, integrin beta1, tyrosine kinases and guanine exchange factor Vav-2. Cell Communication and Signaling 9:32 [PDF] [biosignaling.com].
  • Boehm, M., M. Krause-Gruszczynska, M. Rohde, N. Tegtmeyer, S. Takahashi, O. A. Oyarzabal, and S. Backert. 2011. Major host factors involved in epithelial cell invasion of Campylobacter jejuni: Role of fibronectin, integrin beta1, FAK, Tiam-1, DOCK180 in activating Rho GTPase Rac1. Frontiers in Cellular and Infection Microbiology 1:1-13 [PDF] [Frontiers].
  • Zhou, P., S. K. Hussain, M. R. Liles, C. R. Arias, S. Backert, J. R. Kieninger, and O. A. Oyarzabal. 2011. A simplified and cost-effective enrichment protocol for the isolation of Campylobacter spp. from retail broiler meat without microaerobic incubation. BMC Microbiology 11:175 [PDF] [Pubmed].
  • Hellein, K. N., C. Battie, E. Tauchman, D. Lund, O. A. Oyarzabal and J. E. Lepo. 2011. Culture-based indicators of fecal contamination and molecular microbial indicators rarely correlate with Campylobacter spp. in recreational waters. Journal of Water and Health 9:695–707 [PDF] [Journal of Water and Health].
  • Gnanaprakasa, T. J., O. A. Oyarzabal, E. V. Olsen, V. A. Pedrosa, and A. L. Simonian. 2011. Tethered DNA scaffolds on optical sensor platforms for detection of hipO gene from Campylobacter jejuni. Sensors & Actuators: B. Chemical 156:304-311 [PDF].
  • Shaheen, B. W, D. M. Boothe, O. A. Oyarzabal, C. Wang, and C. M. Johnson. 2011. Evaluation of the contribution of gyrA mutation and efflux pumps to fluoroquinolone and multidrug resistance in pathogenic Escherichia coli isolates from dogs and cats. American Journal of Veterinary Research 72(1):25-32 [PDF] [Pubmed].
  • Behringer, M, W. G. Miller, and O. A. Oyarzabal. 2011. Typing of Campylobacter jejuni and Campylobacter coli isolated from live broilers and retail broiler meat by flaA-RFLP, MLST, PFGE and REP-PCR. Journal of Microbiological Methods 84:194–201 [PDF] [Pubmed].
  • Oyarzabal, O. A. and S. K. Hussain. 2010. Microbial analytical methodology for processed poultry. In: Guerrero-Legarreta et al. (eds), pp. 527-544. Handbook of Poultry Science and Technology, Secondary Processing, Volume 2. Blackwell-Wiley Publishing, New York, NY. ISBN 9780470185520 [PDF] [Wiley Online Library].
  • Nannapaneni, R., O. A. Oyarzabal, S. C. Ricke, and M. G. Johnson. 2010. Fluoroquinolone-resistant Campylobacter jejuni in raw poultry products. In: S. C. Ricke and F. T. Jones (eds), pp. 247-258. Perspectives on Food-Safety Issues of Animal-Derived Foods. The University of Arkansas Press, Fayetteville, AR (ISBN 1557289190) [PDF] [WorldCat].
  • Traverso, F. R., U. R. M. Bohr, O. A. Oyarzabal, M. Rohde, A. Clarici, T. Wex, D. Kuester, P. Malfertheiner, J. G. Fox, and S. Backert. 2010. Morphological, genetic and biochemical characterization of Helicobacter magdeburgensis, a novel species isolated from the intestine of laboratory mice. Helicobacter 15:403-415 [PDF] [Wiley Online Library].
  • Oyarzabal, O. A., T. P. Oscar, L. Speegle, and H. Nyati. 2010. Survival of Campylobacter jejuni and Campylobacter coli on retail broiler meat stored at -20, 4 or 12oC and development of Weibull models for survival. Journal of Food Protection 73:1438-1446 [PDF] [Pubmed].
  • Oyarzabal, O. A. and L. Liu. 2010. Significance of sample weight and enrichment ratio on the isolation of Campylobacter spp. from retail broiler meat. Journal of Food Protection 73:1339-1343 [PDF] [Pubmed].
  • Shaheen, B. W., D. M. Boothe, and O. A. Oyarzabal. 2010. The role of Class 1 and 2 integrons in mediating antimicrobial resistance among canine and feline clinical E. coli isolates from the US. Veterinary Microbiology 144:363-370 [PDF] [Pubmed].
  • Shaheen, B. W., D. M. Boothe, O. A. Oyarzabal, T. Smaha. 2010. Antimicrobial resistance profiles and clonal relatedness of canine and feline Escherichia coli pathogens expressing multidrug resistance in the United States. Journal of Veterinary Internal Medicine 24:323-330 [PDF] [Pubmed].
  • Caudill, A. B., P. A. Curtis, K. E. Anderson, L. K. Kerth, O. A. Oyarzabal, D. R. Jones, and M. T. Musgrove. 2010. The effects of commercial cool water washing of shell eggs on Haugh unit, vitelline membrane strength, aerobic microorganisms, and fungi. Poultry Science 89:160-168 [PDF] [Poultry Science]
  • Miller, R. S., W. G. Miller, M. Behringer, H. Hariharan, V. Matthew, and O. A. Oyarzabal. 2010. DNA identification and characterization of Campylobacter jejuni and Campylobacter coli isolated from cecal samples of chickens in Grenada. Journal of Applied Microbiology 108:1041–1049 [PDF][Pubmed].

Awards and Recognition

  • Fulbright Specialist, September 2017, Urgench State University and Khorezm Mamun Academy, Uzbekistan Read More.
  • Chair Elect, and Chair P Division, American Society for Microbiology, 2013-2015
  • Ivan L. Roth Award, 2011, Outstanding contributions to the Southeastern Branch, American Society for Microbiology
  • Fulbright Scholar, 2009, Council of International Exchange of Scholars, Washington, D.C.
  • Director's Research Award, 2007, Alabama Agricultural Experiment Station, School of Agriculture, Auburn University
  • Recognition for Outstanding Service as a Charter Online Mentor, Board of the Under-Represented Members Committee, American Society for Microbiology; 2006, 2007, 2009
  • American Society for Microbiology Sustaining Member Student Travel Grant, 1997
  • Outstanding Graduate Student, 1996, Auburn University
  • Sigma Xi, 1997, Full Member, The Scientific Research Society
  • Outstanding New Member, 1996, Phi Beta Delta, Honor Society for International Scholars, Alpha Upsilon, Auburn University
  • Gamma Sigma Delta, 1996, The Honor Society of Agriculture
  • Most Outstanding Graduate Student Research Paper and its Presentation, 1995, Pathology Section, Annual Meeting Southern Poultry Science Society, Atlanta, Ga.
Omar Oyarzabal

Areas of Expertise and/or Research

  • Risk communication and risk management of hazards in foods
  • Food safety programs and HACCP (Hazard Analysis and Critical Control Points)
  • Identification and typing of bacterial foodborne pathogens
  • Microbial source tracking and traceability
  • Food safety regulations

Education

  • PhD, Auburn University
  • MS, Auburn University
  • DVM, National University of Rio IV, Argentina

Contact

Phone:
  • (802) 524-6501
Office Location:

278 South Main Street, Suite 2, St. Albans, Vermont 05478-1866