Dr. Harris 's research emphases include Food Safety (Pre-Harvest) and Food Microbiology. Her research areas of interest include epidemiology of infectious diseases of animals, primarily Salmonella in swine and the associated risk of foodborne transmission to humans. Current projects are evaluating serologic methods for Salmonella prevalence determination in swine, elucidation of risk factors associated with high prevalence levels, and investigating intervention procedures designed to lower such risks