COVID-19 RESPONSE: Former U.S. Surgeon General Richard Carmona discusses the different COVID-19 responses taken by government officials at the federal, state and local level. HOW GERMS SPREAD: Univeristy of Arizona environmental science professor Charles Gerba explains how germs spread indoors and what precautions people can take. BLOOD SHORTAGE: Representatives from the Red Cross’s Southern Arizona chapter discuss a current shortage in blood donations. The organization is continuing to collect donations and rolled out new protocols to improve safety amid COVID-19 concerns. SUPPORTING FOOD BANKS: Tony Paniagua reports on the need for donations and volunteers at the Community Foodbank of Southern Arizona in preparation for an increased demand as a result of COVID-19 impacts. PRESIDENTIAL PREFERENCE ELECTION: Analysis from Luige del Puerto, editor of the Arizona Capitol Times, about this week’s Democratic Presidential Preference Election in Arizona.