Dr. Kali E. Kniel

  • January 1999-May 2002: Ph.D., Food Microbiology, Department of Food Science and Technology, Virginia Polytechnic Institute and State University , Blacksburg , VA
  • August 1996-December 1998: M.S., Molecular Cell Biology, Department of Biology, Virginia Polytechnic Institute and State University , Blacksburg , VA
  • August 1992-May 1996: B.S., Biology, Minor: Sociology, Department of Biology, Virginia Polytechnic Institute and State University , Blacksburg , VA

Current Courses
  • ANFS 102 – Food For Thought
  • ANFS 230 – Foodborne Disesases: Outbreak Investigation This course will explore the “hows” and “whys” of foodborne outbreak investigation. This includes examining current outbreaks and real-life situations using principles of epidemiology; while highlighting the importance of all investigative roles, including the epidemiologist, public health worker, and laboratory scientist. Also, through individual and group problem solving and research, participants will examine case studies while learning to use surveillance, detection, and investigative skills to solve an outbreak. Additionally, ways in which this information should be communicated to the public will be addressed.

  • Food and waterborne protozoa and viruses and use of non-thermal methods to inactivate these organisms on fresh produce.

Professional Activities
  • International Association for Food Protection (IAFP)
  • Capital Area Food Protection Association Affiliate
  • Institute of Food Technologists (IFT)
  • Southeastern Society of Parasitologists (SSP)
  • American Society of Parasitologists (ASP)
  • American Association for Veterinary Parasitologists (AAVP)

Recent Publications

Solomon, E.B., Fino V., Wei J., Kniel, K.E. Comparative susceptibilities of hepatitis A virus, feline calicivirus, bacteriophage MS2 and bacteriophage PhiX‐174 to inactivation by quaternary ammonium and oxidative disinfectants. Int J Antimicrob Agents. Epub 2008 Dec 17.

Fino, V.R.,and Kniel, K.E. Comparative recovery of foodborne viruses from fresh produce. Foodborne Path. Dis. 2008. 5:1‐7.
Fino, V.R., and Kniel, K.E. Ultraviolet Light Inactivation of Hepatitis A Virus, Aichi Virus, and Feline Calicivirus on Strawberries, Green Onions, and Lettuce. J. Food Protect. 2008. 71:908‐913.

Jenkins, M.C., Higgins, J., Abrahante, J.E., Kniel, K.E., O’Brien, C., Trout, J., Lancto, C.A., Abrahamsen, M.S., Fayer, R. Fecundity of Cryptosporidium parvum is correlated with intracellular levels of the viral symbiont CPV. Int J Parasitol. 2008 Jul;38(8‐9):1051‐5.
Sharma, M. , Shearer, A.E.H., Hoover, D.G., Liu, M.N., Solomon, M.B., Kniel, K.E. Comparison of hydrostatic and hydrodynamic pressure to inactivate foodborne viruses. Innovative Food Science and Emerging Technologies, 9 (4), p.418‐422, Oct 2008.
Shearer, A.E.H. and Kniel, K.E. High‐hydrostatic Pressure for Vaccine Development. J. Food Prot.

J.L. Cascarino, E.P. Black, D. Guan, D.G. Hoover, D.T. Hicks, L.F. Pivarnik, and K.E. Kniel. Coliphage as pressure surrogates for enteric viruses in foods. Innovative Food Sci. Emerg. Tech.

Black, E., Hirneisen, K., Hoover, D., Kniel, K. Fate of E. coili O157:H7 in ground beef following high pressure processing and freezing. J. Applied Micro

Kniel, K.E., Shearer, A.E.H., Cascarino, J.L., Wilkins, G.C., and Jenkins, M.C. High hydrostatic pressure and ultraviolet light treatment of produce contaminated with Eimeria acervulina as a Cyclospora cayetanensis surrogate. 2007. J. Food Protection. Submitted.

Sharma, M., Kniel, K.E., Derevianko, A., Ling, J., and Bhagwat, A.A. Sensitivity of Escherichia albertii, a potential foodborne pathogen, to food preservation treatments. Appl. Environ. Micro. 2007. 8:259-268.

Shearer, A.E.H, Wilkins, G.C.,  Jenkins, M.J.,  Kniel, K.E.  Effects of High Hydrostatic Pressure on Eimeria acervulina Pathogenicity, Immunogenicity and Structural Integrity. Innovative Food Science and Emerging Technologies. 2007. 8:259-268.

Kniel, K. Rapid diagnostic methods in food safety: protozoa & parasites. Wiley Encyclopedia of Biotechnology. 2007. In Press

Guan, D., Joerger, R., Kniel, K., Calci, K.R., Hicks, D.T., Pivarnik, L.F., Hoover, D.G. Effect of high hydrostatic pressure on four genotypes of F-specific RNA bacteriophages. J. Applied Microbiology. 2007. 102(1): 51-6.

Guan, D., Joerger, R., Kniel, K., Calci, K.R., Hicks, D.T., Pivarnik, L.F., Hoover, D.G. Response of four types of coliphages to high hydrostatic pressure. Food Microbiology. 2006. 23:546-551.

Joerger, R., Chen, H., Kniel, K. Characterization of a spontaneous, pressure-tolerant Listeria monocytogenes Scott A ctsR deletion mutant. Foodborne Path. Dis. 2006. 3(2):196-202.

Kniel, K.E., Sumner, S.S.,Golden, D.A. Lindsay,D.S., Hackney, C.R., Pierson, M.D., Zajac, A.M., and Fayer, R. Effect of Effect of Ozone Treatment on Cryptosporidium parvum Viability in Fruit Juices. Foodbrn. Path. Dis. 2005. in press.

Kniel, K.E. and Jenkins, M.C. Detection of Cryptosporidium parvum oocysts on fresh vegetables and herbs using antibodies specific for a C. parvum viral antigen. J. Food Prot. 2005. May 68(5): 1093-1096.

Contact Information Dr. Kali E. Kniel

Professor, Microbial Food Safety

Animal and Food Sciences
044 Townsend Hall
Newark, DE 19716
Phone: (302) 831-6513
Fax number: (302) 831-2822
Email: kniel@udel.edu