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College of Veterinary Medicine

Natalia Cernicchiaro

 Assistant Professor, Epidemiology

DVM - University of Uruguay (2003)
MSc (Epidemiology) - University of Minnesota (2006)
PhD (Epidemiology) - University of Guelph (2010)
Post-doctoral fellow - Kansas State University (2011)

Phone: 785-532 4241
Fax: 785-532 4851
Email: ncernic@vet.k-state.edu


My primary research focus is on veterinary epidemiology, food safety, zoonoses and production medicine. My research interests include the application of epidemiological concepts and techniques, including multi-level modeling and other statistical methods, to design, implement, analyze, and interpret observational and experimental data.  I like to integrate the use of core epidemiological and economic approaches to analyze large operational datasets on feedlot cattle health and performance as a way to enhance the practical understanding of cattle health problems. My projects have involved a variety of pathogens, such as Escherichia coli O157:H7 and respiratory disease organisms in cattle and wildlife hosts. Other research interests include the application of knowledge synthesis and translation techniques as a tool to help practitioners, and producers making evidence-based decisions. In addition, I am interested in promoting education and research through national and international collaboration.


I coordinate and instruct the Advanced Epidemiology course (DMP 954) for graduate students and I help teach introductory Epidemiology and Applied Production Medicine courses. In addition, I participate in mentoring students in the MS, PhD and MPH programs.

Selected Publications

PubMed search for Dr. Cernicchiaro.

Cernicchiaro, N., Paddock, Z.D., Cull, C.A., Nagaraja, T.G., Renter, D.G. 2014. Fecal shedding of non-O157 serogroups of Shiga toxin--producing Escherichia coli in feedlot cattle vaccinated with an E. coli O157:H7 SRP® vaccine and fed a Lactobacillus-based direct-fed microbial. Journal of Food Protection. 77:732-737. 

Swirski, A.L., Pearl, D.L., Williams, M.L., Homan, J., Linz, G., Cernicchiaro, N., LeJeune, J.T. 2014. Spatial epidemiology of Escherichia coli O157:H7 in dairy cattle in relation to night roosts of Sturnus vulgaris (European starling) in Ohio, USA (2007-2009). Zoonoses and Public Health. 61:428-435. 

Cernicchiaro, N., Cull, C.A., Paddock, Z.D., Shi, X., Bai, J., Nagaraja, T.G., Renter, D.G. 2013. Prevalence of Shiga toxin-producing Escherichia coli and associated virulence genes in feces of commercial feedlot cattle. Foodborne Pathogens and Disease. 10:835-841

 Elmas, C.R., Koenig, J.B., Bienzle, D., Cribb, N., Cernicchiaro, N., Cote, N., Weese, S. 2013. Evaluation of a broad-range real time PCR assay for the diagnosis of septic sinovitis in horses. Canadian Journal of Veterinary Research. 77:211-217. 

Cernicchiaro, N., Renter, D.G., Xiang, S., White,B.J., Bello, N.M. 2013. Hierarchical Bayesian modeling of heterogeneous variances in average daily weight gain of commercial feedlot cattle. Journal of Animal Science. 91:2910-2919. 

Amrine, D.E., White, B.J., Larson, R.L, Anderson, D.E, Mosier, D.A, Cernicchiaro, N. 2013. Precision and accuracy of clinical illness scores, compared with pulmonary consolidation scores, in Holstein calves with experimentally induced Mycoplasma bovis pneumonia. American Journal of Veterinary Research. 74:310-315. 

Cernicchiaro, N., White, B.J., Renter, D.G., Babcock, A.H. 2013. Evaluation of economic and performance outcomes associated with the number of treatments after an initial diagnosis of bovine respiratory disease in commercial feeder cattle. American Journal of Veterinary Research. 74:300-309. 

Babcock, A.H., Cernicchiaro, N., White, B.J., Dubnicka, S.R., Thomson,D.U., Ives, S.E., Scott,H.M., Milliken, G.A., Renter, D.G. 2012. A multivariable assessment quantifying effects of cohort-level factors associated with combined mortality and culling risk in U.S. commercial feedlot cattle. Preventive Veterinary Medicine.108:38-46. 

Cernicchiaro, N., Renter, D.G., White, B.J., Babcock, A.H., Fox, J.T. 2012. Associations between weather conditions during the first 45 days following arrival and daily respiratory disease rates in autumn-placed U.S. commercial feedlot cattle. Journal of Animal Science. 90:1328-1337. 

Cernicchiaro, N., White, B.J., Renter, D.G., Babcock, A.H., Kelly, L., Slattery, R. 2012. Associations between the distance traveled from sale barns to U.S. commercial feedlots and overall performance, risk of respiratory disease and cumulative mortality in feeder cattle during 1997 to 2009. Journal of Animal Science. 90:1929-1939. 

Cernicchiaro, N., White, B.J., Renter, D.G., Babcock, A.H., Kelly, L., Slattery, R. 2012. Effects of weight loss during transit from sale barns to commercial feedlots on health and performance in feeder cattle cohorts arriving to feedlots from 2000 to 2008. Journal of Animal Science. 90:1940-1947. 

Tusevljak, N., Rajic, A., Waddell, L., Dutil, L., Cernicchiaro, N., Greig, J., Wilheim, B., Wilkins, W., Totton, S., Uhland, C.F., Avery, B., McEwen, S.  2012. Prevalence of selected zoonotic bacteria in selected aquatic species and seafood: a scoping study, systematic review and meta-analysis of published research. Foodborne Pathogens and Disease 9:487-497. 

Cernicchiaro, N., Pearl, D.L., McEwen, S.A., Harpster, L., Homan, H.J., Linz, G.M., LeJeune, J.T. 2012. Association of wild bird density and farm management factors with the prevalence of E. coli O157 in dairy herds in Ohio (2007-2009). Zoonoses and Public Health. 59:320-329. 

Weir, M., Rajić, A., Dutil, L., Cernicchiaro, N., Uhland, C.F., Mercier, B., and Tuševljak, N. 2012.Zoonotic bacteria, antimicrobial use and antimicrobial resistance in ornamental fish: a systematic review of the existing research and survey of aquaculture-allied professionals. Epidemiology and Infection Journal 140:192-206.

Rioja, E., Cernicchiaro, N., Costa, M.C., Valverde, A. 2012. Perioperative risk factors for mortality and length of hospitalization in mares with dystocia undergoing general anesthesia: a retrospective study. Canadian Veterinary Journal. 53:502-510. 

Cernicchiaro, N., Pearl, D.L., McEwen, S.A., LeJeune, J.T. 2011. Assessment of diagnostic tools for identifying cattle shedding and super-shedding Escherichia coli O157:H7 in a longitudinal study of naturally infected feedlot steers in Ohio. Foodborne Pathogens and Disease 8:239-248. 

Cernicchiaro, N., Pearl, D.L., McEwen, S.A., Zerby, H.N., Fluharty, F.L., Loerch, S.C., Kauffman, M.D., Bard, J.L., LeJeune, J.T. 2010. A randomized controlled trial to assess the impact of dietary energy sources, feed supplements, and the presence of super-shedders on the detection of Escherichia coli O157:H7 in feedlot cattle using different diagnostic procedures. Foodborne Pathogens and Disease 7:1071-1081. 

Cernicchiaro, N., Pearl, D.L., Ghimire, S., Gyles, C.L., Johnson, R.P., LeJeune, J.T., Ziebell, K., McEwen, S.A. 2009. Risk factors associated with Escherichia coli O157:H7 in Ontario beef cow-calf operations. Preventive Veterinary Medicine 92:106-115. 

Cernicchiaro, N., Wells, S. J., Sreevatsan, S., Janagama, H. 2008. Characterization of Mycobacterium avium subsp. paratuberculosis subtypes by type of culture media. Journal of Clinical Microbiology 46:145-149. 

Wells, S.J., Collins, M.T., Faaberg, K.S., Wees, C., Tavornpanich, S., Petrini, K.R., Collins, J.E., Cernicchiaro, N., Whitlock, R. 2006. Evaluation of a rapid fecal PCR test for detection of Mycobacterium avium subsp. paratuberculosis in dairy cattle. Clinical Vaccine Immunology 13:1125-1130.