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Jennifer K.   Ketzis BS, MS, PhD

Associate Professor, Parasitology

Dr. Jennifer Ketzis received her PhD from Cornell University, where she focused on international livestock production and the use of medicinal plants to control Haemonchosis in goats. She then took a position at Novartis Animal Health in Switzerland working on the development of natural based products and endo- and ecto-parasiticides. In 2005, as a Senior Scientist, she established a parasitology laboratory at Charles River Laboratories, Ireland, where she worked with several pharmaceutical companies designing and managing GLP and GCP ecto- and endo-parasite efficacy studies. In 2012, Dr. Ketzis joined Ross University School of Veterinary Medicine.


BSc Animal Science, Cornell University

MS Animal Science (minor: environmental conservation and sustainable development), Cornell University

PhD Animal Science (minors: parasitology and epidemiology), Cornell University


Efficacy of endo- and ecto-parasiticides

Parasitic zoonoses of both public health and agricultural importance

Epidemiology of parasites


Ron Taylor Award for Outstanding Performance, DeVry Inc., 2013

Member Gamma Sigma Delta, Honor Society of Agriculture

Publication Highlights

Shell L, Ketzis J, Hall R, Rawlins G, du Plessis, W. Praziquantel treatment for Platynosomum spp. infection of a domestic cat on St. Kitts, West Indies. J Feline Med Surg. In Press.

Yoon KS and Ketzis JKK (joint 1st authors), Andrewes SW, Wu CS, Honraet K, Staljanssens D, Rossel B, Clark JM. In vitro and in vivo evaluation of infestation deterrents against lice. J Med Entomol. In Press.

Hamilton C, Kelly PJ, Bartley PM, Burrells A, Porco A, Metzler D, Crouch K, Ketzis J, Innes E, Katzer F. 2015. Toxoplasma gondii in livestock in St. Kitts and Nevis, West Indies. Parasites & Vectors. 8:166. DOI 10.1186/s13071-015-0776-7.

Ketzis JKK, Verma A, Burgess G. 2015. Molecular characterization of Trichuris serrata. Parasitol Res. ePub 11 March.

Ketzis JKK. 2015. Trichuris spp. infecting domestic cats on St. Kitts: identification based on size or vulvar structure? SpringerPlus 4: 115 doi:10.1186/s40064-015-0892-z

Ketzis JK, Shell L, Chinault S., Pemberton C, Pereira M. 2015. The prevalence of Trichuris spp. infection in indoor and outdoor cats on St. Kitts. J of Inf in Dev Countries 9: 111-113.

Gattenuo T, Ketzis J, Shell L. 2014. Fenbendazole treatment for Mammomonogamus spp. infection of a domestic cat on St. Kitts, West Indies. J Feline Med Surg 16: 864-866.

Ketzis JK, Clements C, Honraet K. 2014. Use of a poultry model to assess the transfer inhibition effect of head lice (Pediculus humanus capitis) products. Parasitol Res 113(5):1943-8.

Nibblett BM, Ketzis JK, Grigg EK. 2014. Comparison of stress exhibited by cats examined in a clinic versus a home setting. Applied Animal Behaviour Science. Epub.

Schimmel A, Schroeder I, Altreuther G, Settje T, Charles S, Wolken S, Kok DJ, Ketzis J, Young D, Hutchens D, Krieger KJ. 2011. Efficacy of emodepside plus toltrazuril (Procox(®) oral suspension for dogs) against Toxocara canis, Uncinaria stenocephala and Ancylostoma caninum in dogs. Parasitol Res, 109 Suppl 1:1-8.

Current Projects

Diagnosis and treatment of Platynosomum fastosum in cats.
Epidemiology of Lynxacarus radovskyi.


MS certificate Project Management, George Washington University School of Business
ESME Certificate in Medical Education