Hosni Hassan received his Ph.D. in Microbiology in 1967 from the University of California at Davis, CA, He served as assistant professor of Food Microbiology at the University of Alexandria, Egypt. In 1972, he was a visiting professor at McDonald College, McGill University, and as an associate professor at McGill University Medical School in Montreal, Canada. From 1976 to 1979 has worked in the Biochemistry Department at Duke University, Durham, NC. He has been at NC State University since 1980 and is serving as a professor of Microbiology, Biochemistry, Toxicology and Food Science. Currently, he is with the Prestage Department of Poultry Science. Hosni's research is focused on microbial physiology and biochemistry. He is interested in oxidative stress, gene regulation, and food safety. Currently, he is interested in salmonella pathogenesis, vaccines for salmonella, probiotics and prebiotics, proteomics, metabolomics, and host–microbe interactions.