Haley, B.J., Allard, M., Brown, E., Hovingh, E., Karns, J.S., Van Kessel, J.S. 2013. Comparative genomics reveals the source and mechanisms of a Salmonella Kentucky epidemic on a dairy farm. BARC Poster Day.
Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E. 2013. Regional distribution of two dairy-associated Salmonella enterica serotypes. Foodborne Pathogens and Disease. 10(5):448-452.
Haley, B.J., Karns, J.S., Van Kessel, J.S. 2012. Genomic investigation of Salmonella enterica sequences associated with long-term colonization of the bovine gut. Meeting Abstract.
Van Kessel, J.S., Sonnier, J.L., Zhao, S., Karns, J.S. 2013. Antimicrobial resistance of Salmonella enterica isolates from bulk tank milk and milk filters in the United States. Journal of Food Protection. http://dx.doi.org/10.4315/0362-28X.JFP-12-263.
Van Kessel, J.S., Sonnier, J.L., Zhao, S., Karns, J.S. 2012. Antimicrobial resistance of Salmonella enterica isolated from bulk tank milk and milk filters in the United States. Meeting Abstract.
Van Kessel, J.S., Karns, J.S., Wolfgang, D., Hovingh, E., Schukken, Y. 2012. Dynamics of Salmonella serotype shifts in an endemically infected dairy herd. Foodborne Pathogens and Disease. 9:319-324.
Shelton, D.R., Karns, J.S., Sadeghi, A.M., Coppock, C.R., Pachepsky, Y.A. 2011.Relationship between eae and stx virulence genes and Escherichia coli in an agricultural watershed: Implications for irrigation water standards and leafy green commodities. Journal of Food Protection. 74(1):18-23.
Zhu, P., Shelton, D.R., Li, S., Adams, D., Karns, J.S., Amstutz, P., Tang, C. 2011. Detection of E. coli O157:H7 by immunomagnetic separation coupled with fluorescence immunoassay. Biosensors and Bioelectronics. 30:337-341.
Zhang, L., Seagren, E., Davis, A., Karns, J.S. 2012. Effects of temperature on bacterial transport and destruction in bioretention media: Field and laboratory evaluations. Water Environment Research. 84:485-496.
Latorre, A., Pradhan, A., Van Kessel, J.S., Karns, J.S., Boor, K., Rice, D., Mangione, K., Grohn, Y., Schukken, Y. 2011. Quantitative risk assessment of Listeriosis due to consumption of raw milk. Journal of Food Protection. 74(8): 1268-1281.
Latorre, A., Van Kessel, J.S., Karns, J.S., Zurakowski, M., Pradhan, A., Sukhnanand, S., Schukken, Y. 2011. Increased in vitro adherence and on-farm persistence of predominant and persistent Listeria monocytogenes strains in the milking system. Applied and Environmental Microbiology. 77(11):3676-3684.
Van Kessel, J.S., Karns, J.S., Lombard, J.E. 2011. Prevalence of Salmonella enterica, Listeria monocytogenes and E. coli Virulence Factors in Bulk Tank Milk and In-line Filters from US Dairies. Foodborne Pathogens and Disease. 759-768.
Pradhan, A., Mitchell, R., Kramer, A., Zurakowski, M., Fyock, T., Whitlock, R., Smith, J., Hovingh, E., Van Kessel, J.S., Karns, J.S., Schukken, Y. 2011. Molecular Epidemiology of Mycobacterium avium subsp. paratuberculosis in a Longitudinal Study of Three Dairy Herds. Journal of Clinical Microbiology. 49(3):893-901.
Shelton, D.R., Karns, J.S., Coppock, C.R., Patel, J.R., Sharma, M., Pachepsky, Y.A. 2011. Comparison of generic E. coli vs. pathogenic E. coli virulence factors in an agricultural watershed: implications for irrigation water standards and leafy green commodities. Journal of Food Protection. 74:18-23.
Jenkins, M.C., Obrien, C.N., Macarisin, D., Karns, J.S., Santin, M., Fayer, R. 2010. Characterization of giardin protein expression during encystation of Giardia duodenalis. Meeting Abstract.
Van Kessel, J.S., Santin, M., Karns, J.S., Schukken, Y. 2010. Tracking Zoonotic Pathogens in Dairy Production Chains. In: Brul, S., Fratamico, P.M., and McMeekin, T.A., editors. Tracing Pathogens in the Food Chain. Philadelphia, PA: Woodhead Publishing. p. 503-526.
Zanella, R., Settles, M., Mckay, S.D., Schnabel, R.D., Taylor, J.F., Fyock, T., Whitlock, R.H., Schukken, Y., Van Kessel, J.S., Karns, J.S., Hovingh, E., Smith, J., Neibergs, H.L. 2010. Identification of loci associated with tolerance to Johne's disease in Holstein cattle. Animal Genetics. 42(1):28-38.
Latorre, A.A., Van Kessel, J.S., Karns, J.S., Zurakowski, M.J., Pradhan, A.K., Boor, K.J., Jayarao, B.M., Houser, B.A., Daugherty, C.S., Schukken, Y.H. 2010. Biofilm in milking equipment on a dairy farm as a potential source of bulk tank milk contamination with Listeria monocytogenes. Journal of Dairy Science. 93:2792-2802.
Ruzante, J., Lombard, J., Wagner, B., Fossler, C., Karns, J.S., Van Kessel, J.S., Gardner, I. 2010. Factors associated with Salmonella presence in environmental samples and bulk-tank milk from U.S. dairies. Zoonoses and Public Health. Available: http://dx.doi.org/10.1111/j.1863-2378.2010.01333.x
Zhang, L., Seagren, E.A., Davies, A.P., Karns, J.S. 2010. The capture and destruction of E. coli from simulated urban runoff using conventional bioretention media and iron oxide-coated sand. Water Environment Research. 82:701-713.
Karns, J.S. 2009. Salmonella, E. coli and Listeria in raw milk, a tale of 3 dairy farms in the northeast US. Food Science and Nutrition Department, North Carolina Agricultural and Technical State University.
Karns, J.S., Van Kessel, J.S. 2009. PCR Analysis of Pathogenic E. coli on Three Dairy Farms in the Northeastern United States. Joint Abstracts of the American Dairy Science and Society of Animal Science. J. Anim. Sci. Vol. 87, E-Suppl. 2/J. Dairy Sci. Vol. 92, E-Suppl. 1
Van Kessel, J.S., Karns, J.S. Salmonella serotype shift during an endemic dairy infection. Joint Abstracts of the American Dairy Science and Society of Animal Science. J. Anim. Sci. Vol. 87, E-Suppl. 2/J. Dairy Sci. Vol. 92, E-Suppl. 1 221
Latorre, A.A., Van Kessel, J.S., Karns, J.S., Zurakowski, M.J., Pradhan, A.K., Zadoks, R.N., Boor, K.J., Schukken, Y.H. 2009. Molecular ecology of Listeria monocytogenes: Evidence for a reservoir in milking equipment on a dairy farm. Applied and Environmental Microbiology. 75(5):1315-1323.
Pradhan, A., Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E., Nelen, K.A., Smith, J.M., Whitlock, R.H., Fyock, T., Ladely, S.R., Cray, P.J., Schukken, Y.H. 2009. Dynamics of endemic infectious diseases of animal and human importance on three dairy herds in the northeastern United States. Journal of Dairy Science. 92:1811-1825.
Pachepsky, Y.A., Karns, J.S., Yu, O., Shelton, D.R., Guber, A.K., Van Kessel, J.S. 2008. Strain-dependent variations in attachment of E. coli to soil particles of different sizes. International Agrophysics. 22:61-66.
Antognoli, M., Lombard, J.E., Wagner, B.A., Mcclusky, B.J., Van Kessel, J.S., Karns, J.S. 2009. Risk factors associated with the presence of viable Listeria monocytogenes in bulk tank milk from U.S. dairies. Zoonoses and Public Health. 56(2):77-83.
Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E., Jayarao, B.M., Van Tassell, C.P., Schukken, Y.H. 2008. Environmental sampling to predict fecal prevalence of Salmonella in an intensively monitored dairy herd. Journal of Food Protection. 71(10):1967-1973.
Shelton, D.R., Karns, J.S., Park, C.H. 2008. A multiple protocol to improve diagnosis and isolation of shiga toxin-producing escherichia coli (stec) from human stool specimens. Diagnostic Microbiology and Infectious Disease. http://dx.DOI.org/10.1016/j.diagmicrobio.2008.05.001.
Settles, M., Zanella, R., Mckay, S., Schnabel, R., Taylor, J., Fyock, T., Whitlock, R., Schukken, Y., Hovingh, E., Van Kessel, J.S., Karns, J.S., Smith, J., Neibergs, H. 2008. Whole Genome Association Study of Johne's Disease. 3rd International Symposium on Animal Functional Genomics (ISAFG), April 7th-9th, 2008, Edinburg, UK.
Karns, J.S., Van Kessel, J.S., Lombard, J.E. 2008. Prevalence of E. coli Virulence Factors in Raw Bulk Tank Milk from U.S. Dairy Farms. The American Society for Microbiology 108th General Meeting in Boston, Massachusetts, June 1- 5, 2008.
Van Kessel, J.S., Karns, J.S., Lombard, J.E. 2008. Prevalence of Salmonella and Listeria monocytogenes in Raw, Bulk Tank Milk From US Dairy Farms. 95th Annual Meeting of the International Association for Food Protection (IAFP) August 3-6, 2008, Columbus, Ohio. Paper No. P2-21.
Hang, J., Sundaram, A.K., Zhu, P., Shelton, D.R., Karns, J.S., Martin, P.A., Li, S., Amstutz, P., Tang, C.M. 2008. Development of a Rapid and Sensitive Immunoassay for Detection and Subsequent Recovery of Bacillus anthracis Spores in Environmental Samples. Journal of Microbial Methods. 73:242–246.
Karns, J.S., Son, I., Van Kessel, J.S. 2008. Comparison of Escherichia coli from Milk and Milk Filters with E. coli from Feces and Environmental Samples on a Dairy Farm. The American Society for Microbiology 108th General Meeting, Boston, Massachusetts. June 1-5, 2008.
Son, I., Van Kessel, J.S., Karns, J.S. 2008. Diversity of Escherichia coli in a Dairy Farm. The American Society for Microbiology 108th General Meeting in Boston, Massachusetts, June 1-5, 2008.
Zanella, R., Settles, M., Fyock, T., Whitlock, R., Schukken, Y., Van Kessel, J.S., Karns, J.S., Hovingh, E., Smith, J., Van Tassell, C.P., Gaskins, C., Neibergs, H. 2008. Heritability of Genetic Tolerance to Johne’s Disease. Joint ADSA-ASAS Meeting, July 7th-11th, 2008, Indianapolis, Indiana. p.4.
Shelton, D.R., Karns, J.S., Sadeghi, A.M., Coppock, C.R., Pachepsky, Y.A. 2008. Evaluation of Microbial Water Quality Indicators in a Forested/Agricultural Watershed. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). Online: http://asae.frymulti.com/abstract.asp?aid=24306&t=1.
Whitlock, R.H., Mangold, B.L., Mcadams, S., Fyock, T., Sweeney, R., Schukken, Y., Smith, J., Van Kessel, J.S., Hovingh, E., Karns, J.S., Wolfgang, D., Johnson, T. 2007. Real-time PCR testing of pooled (1:5) fecal samples comparison to HEYM culture. International Colloquium on Paratuberculosis, Tsukuba, Japan. No.75b. http://www.paratuberculosis.org/pubs/proc9/abst75b_o1.htm.
Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E., Schukken, Y. 2007. Longitudinal study of a clonal, sub-clinical outbreak of Salmonella enterica subsp. enterica Serovar Cerro in a US dairy herd. Foodborne Pathogens and Disease. 4(4):449-461.
Yu, O., Pachepsky, Y.A., Karns, J.S., Shelton, D.R., Guber, A.K. 2007. Strain-dependent variations in attachment of E. coli to soil particles of different sizes. ASA-CSSA-SSSA International Annual Meeting, November 4-8, 2007, New Orleans, LA. Abstract 292-24. 2007 CDROM.
Karns, J.S., Van Kessel, J.S., McClusky, B.J., Perdue, M.L. 2007. Incidence of Escherichia coli O157:H7 and E. coli Virulence Factors in U.S. Bulk Tank Milk as Deteremined by Polymerase Chain Reaction. Journal of Dairy Science. 90:3212-3219.
Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E., Schukken, Y. 2007. The relationship between Salmonella detection from milk filters and bulk milk and the fecal shedding prevalence of Salmonella in a dairy herd. Joint Meeting of the ADSA, AMSA, ASAS and PSA, July 7-12, 2007, San Antonio, Texas.
Chapagain, P.P., Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E., Nelen, K., Schukken, Y.H., Grohn, Y.T. 2007. A mathematical model of the dynamics of Salmonella Cerro infection in a U.S. dairy herd. Epidemiology and Infection. Available: http://Journals.Cambridge.org.
Shelton, D.R., Park, C., Karns, J.S. 2007. A multiple protocol to improved diagnosis and isolation of shiga toxin-producing escherichia coli (stec) from human stool specimens. 107th Annual Meeting of the American Society for Microbiology, May 21-25, 2007, Toronto, Canada.
Van Kessel, J.S., Pachepsky, Y.A., Shelton, D.R., Karns, J.S. 2007. Survival of Escherichia coli in cow pats in pasture and in laboratory conditions. Journal of Applied Microbiology. 103(4):1122-1127.
Guber, A.K., Karns, J.S., Pachepsky, Y.A., Sadeghi, A.M., Van Kessel, J.S., Dao, T.H. 2007. Comparison of release and transport of manure-borne E. coli and Enterococci under grass buffer conditions. Letters in Applied Microbiology. 44(2):161-167.
Shelton, D.R., Karns, J.S., Higgins, J.A., Van Kessel, J.S., Perdue, M.L., Belt, K.T., Russel-Anelli, J., Debroy, C. 2006. Impact of microbial diversity on rapid detection of enterohemorrhagic Escherichia coli in surface waters. Federation of European Microbiological Societies Microbiology Letters. 261:95-101.
Guber, A.A., Karns, J.S., Pachepsky, Y.A., Sadeghi, A.M., Van Kessel, J.S., Dao, T.H. 2006. Differences in release and transport of manure-borne E. coli and Enterococci in grass buffer conditions. ASA-CSSA-SSSA International Meeting, November 12-16, 2006, Indianapolis, Indiana. CD-ROM.
Van Kessel, J.S., Karns, J.S., Wolfgang, D.R., Hovingh, E., Schukken, Y. 2006. A long term, sub-clinical, outbreak of Salmonella enterica subsp. enterica Cerro in a Pennsylvania dairy herd. Joint Meeting of the ADSA, AMSA, ASAS and PSA, Minneapolis, MN, July 9-13, 2006.
Shelton, D.R., Karns, J.S., Higgins, J.A., Van Kessel, J.S., Belt, K.T., Debroy, C. 2006. Impact of microbial diversity on detection of water-borne enterohemorrhagic Escherichia coli [abstract]. 2nd FEMS Congress of European Microbiologists, July 4-8, 2006, Madrid, Spain.
Shelton, D.R., Zhu, P., Hang, J., Li, S., Karns, J.S., Amstutz, P., Tang, C. 2006. Detection of pathogenic agents using the integrating waveguide biosensor [abstract]. The Ninth World Congress on Biosensors, May 10-12, 2006, Toronto, Ontario, Canada.
Chapagain, P.P., Van Kessel, J.S., Karns, J.S., Wolfgang, D., Schukken, Y.H., Grohn, Y.T. 2006. Mathematical modeling of the dynamics of Salmonella Cerro infection in a U.S. dairy herd. American Physical Society. p. 1.
Karns, J.S., Van Kessel, J.S., Mccluskey, B.J., Perdue, M.L. 2005. Prevalanece of Salmonella Enterica in bulk tank milk from U.S. Dairies as determined by pcr. Journal of Dairy Science. 88:3475-3479.
Sundaram, A., Hang, J., Shelton, D.R., Karns, J.S., Zhu, P., Li, S., Amstutz, P., Bull, R., Tang, C. 2005. Sensitive and Rapid Biosensor and Assays for Detection of Bacillus Anthracis Spores. ASM Biodefense Research Meeting, March 20-23, 2005, Baltimore, MD. p.60.
Van Kessel, J.S., Karns, J.S., Gorski, L.A., Perdue, M.L. 2005. Subtyping Listeria monocytogenes from bulk tank milk using automated repetitive element-based PCR. In: International Association for Food Protection Proceedings, August 14-17, 2005, Baltimore, MD. p. 14.
Shu, P., Shelton, D.R., Karns, J.S., Sundaram, A., Li, S., Amstutz, P., Tang, C. 2005. Detection of water borne E. coli using the integrated waveguide biosensor. Biosensors and Bioelectronics. 21:678-683.
Fratamico, P.M., Gehring, A.G., Karns, J.S., Van Kessel, J.S. 2005. Detecting pathogens in cattle and meat. Book Chapter. Improving the Safety of Fresh Meat, Woodhead Publishing Ltd., Cambridge, UK pg:25-55
Higgins, J.A., Karns, J.S., Shelton, D.R., Belt, K.T., Anelli, J. 2005. Tir- and stx- positive E. coli in stream waters in a metropolitan area. Applied and Environmental Microbiology. 71:2511-2519.
Whiteaker, J., Karns, J.S., Fenselau, C., Perdue, M.L. 2004. Analysis of Bacillus anthracis spores in milk using mass spectrometry. Foodborne Pathogens and Disease. l(3):185-194.
Van Kessel, J.S., Karns, J.S., Gorski, L.A., McCluskey, B.J., Perdue, M.L. 2004. Prevalence of Salmonellae, Listeria monocytogenes and fecal coliforms in bulk tank milk on U.S. dairies. Journal of Dairy Science. p. 2822-2830.
Shelton, D.R., Higgins, J.A., Van Kessel, J.S., Pachepsky, Y.A., Belt, K., Karns, J.S. 2004. Estimation of viable Escherichia coli 0157 in surface waters using enrichment in conjunction with immunological detection. Journal of Microbiological Methods. 58:223-231.
Karns, J.S., Van Kessel, J.S., McCluskey, B.J., Perdue, M.L. 2005. Prevalence of Salmonella enterica in bulk tank milk from US Dairies as determined by PCR. International Association for Food Protection Proceedings, August 14-17, 2005, Baltimore, MD. p.1
Zhu, P., Shelton, D.R., Karns, J.S., Sundaram, A., Li, S., Amstutz, P., Tang, C. 2004. A combined immunological-PCR biosensor for detection of water borne E. coli O157:H7. American Society of Microbiology Meeting, Bio-Defense Research. p. 24.
Higgins, J.A., Shelton, D.R., Karns, J.S., Russell-Anelli, J., Belt, K. 2003. Surveying the Baltimore Ecosystem study stream sites for the presence of enteric pathogens [Abstract]. Baltimore Ecosystem Study Annual Meeting. Brochure p.1.
Shelton, D.R., Pachepsky, Y.A., Belt, K.T., Debroy, C., Karns, J.S. 2003. Detection and characterization of pathogenic E. coli in surface waters: Implications for preharvest produce. United States-Japan Cooperative Program in Natural Resources. p. 12.
Shelton, D.R., Van Kessel, J.S., Wachtel, M.R., Belt, K.T., Karns, J.S. 2003. Evaluation of parameters affecting detection of Escherichia Coli 0157 in enriched water samples using immunomagnetic electrochemiluminescence. Journal of Microbiological Methods. p. 717-725.
Perdue, M.L., Karns, J.S., Higgins, J.A., Van Kessel, J.S. 2003. Detection and fate of Bacillus anthracis (Sterne) vegetative cells and spores added to bulk tank milk. Journal of Food Protection. 66:2349-2354.
Karns, J.S., Van Kessel, J.S., Perdue, M.L. 2003. Use of Real-Time Polymerase Chain Reactions(PCR) for the detection of pathogenic microbes in bulk tank milk. Joint Abstracts of the American Dairy Science and Society of Animal Science. p.369
Van Kessel, J.S., Karns, J.S., McCluskey, B.J., Perdue, M.L. 2003. Survey of bulk tank milk in the United States for food-borne bacterial pathogens. [Abstract]. Joint Abstracts of the American Dairy Science and Society of Animal Science. p.369.
VAN KESSEL, J.S., KARNS, J.S., PERDUE, M.L. USING PORTABLE REAL-TIME POLYMERASE CHAIN REACTION (RT-PCR) ASSAYS TO DETECT SALMONELLA IN RAW MILK. JOURNAL OF FOOD PROTECTION. 2003. pp.1762-1767.
VAN KESSEL, J.S., KARNS, J.S., PERDUE, M.L. USING PORTABLE REAL-TIME POLYMERASE CHAIN REACTION (RT-PCR) ASSAYS TO DETECT SALMONELLA SPP. IN RAW MILK. AMERICAN SOCIETY FOR MICROBIOLOGY. 2003. P-068.
Karns, J.S. 2003. Specific detection of pathogens in environmental samples: Agricultural research meets bioterrorism [abstract]. 53rd Annual Meeting Canadian Society of Microbiologists, May 25-28, 2003, Ville de Laval, Montreal, Canada. p. 1.
Shelton, D.R., Van Kessel, J.S., Karns, J.S. 2003. Estimating Escherichia coli O157 populations in water samples using immunomagnetic ectrochemiluminescence. American Society for Microbiology Annual Meeting. p.96
Higgins, J.A., Shelton, D.R., Karns, J.S., Belt, K. 2003. Molecular tools to evaluate the epidemiology and control of waterborne zoonotic infections. American Association of Veterinary Parasitologists Proceedings, July 22, 2003.Denver, Colorado. p. 61.
Higgins, J.A., Karns, J.S., Shelton, D.R., Belt, K. 2003. Prevalence and molecular characterization of enteropathogenic E. coli in streams along an urban-rural gradient in the Baltimore, Maryland Metropolitan Area [abstract]. American Society for Microbiology Annual Meeting. p. 125.
Shelton, D.R., Pachepsky, Y.A., Sadeghi, A.M., Stout, W.L., Karns, J.S., Gbarek, W.J. 2003. Release rates of manure-borne coliform bacteria from data on leaching through stony soil. Vadose Zone Journal. 2:34-39.
Higgins, J.A., Nasarabadi, S., Karns, J.S., Shelton, D.R., Cooper, M., Gbakima, A., Koopman, R.P. 2003. A handheld real time thermal cycler for bacterial pathogen detection. Biosensors and Bioelectronics. p. 115-1123.
Perdue, M.L., Karns, J.S., Van Kessel, J.S., Higgins, J.A. 2002. Fluorescent Real-Time Molecular (PCR) Detection of zoonotic bacteria and viruses in bulk milk. p.3. . International Meeting on Molecular Epidemiology and Evolutionary Genetics in Infectious Disease.
Black, S., Higgins, J.A., Karns, J.S., Perdue, M.L., Breeze, R., House, D., Cooper, M., Tucker, L., Miller, D. 2002. Mobile laboratory for Bacillus anthracis detection. National Cancer Institute, United States Army Medical Institute of Infectious Disease, United States Department of Agriculture Spring Research Fair.
Higgins, J.A., Cooper, M., Tucker, L., Black, S., Miller, D., Karns, J.S., Manthey, E., Breeze, R., Perdue, M.L. 2003. A field investigation of Bacillus anthracis contamination of U.S. Department of Agriculture and other Washington, D.C., buildings during the anthrax attack of October 2001. Applied and Environmental Microbiology. 69:593-599.
Higgins, J.A., Jenkins, M.C., Shelton, D.R., Fayer, R., Karns, J.S. 2001. Rapid extracton of dna from escherichia coli and cryptosporidium parvum for use in pcr. Applied and Environmental Microbiology. 67:5321-5324.
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