Dr. Charles Gerba, an internationally recognized microbiologist, is professor of Environmental Microbiology in the Departments of Microbiology and Immunology and Soil, Water and Environmental Science, University of Arizona. He has been an author on more than 500 articles including several books in environmental microbiology, risk assessment, and pollution science. He is a fellow of the American Academy of Microbiology, American Association for the Advancement of Science, and the International Water Association. He has served on the Science Advisory Board of the United States Environmental Protection Agency for nine years and is currently a member of the Food Advisory Board of the U. S. Food and Drug Administration. His research studies pathogens in schools, offices, college campuses, hotels and most recently he has been studying COVID-19. He is a frequent guest on national television programs exploring ways to halt disease spread and is the scientist whose studies on pathogens on shopping carts prompted supermarket chains nationwide to adopt the use of wipes for customer use. His work has led to changes in cleaning, sanitizing and disinfecting practices. A sought-after presenter within the scientific community, he has presented at annual meetings for infectious disease, school nurse, school facility manager, and many other organizations. His goal is to reduce the burden of diseases and to share insights about techniques that can help stop outbreaks -- or at least minimize their impact on the school and on the community-at-large.