Thousands of vaccination appointments to open at the University of Arizona site File photo of COVID-19 vaccine doses. (Source: WOIO) By KOLD News 13 Staff | March 5, 2021 at 4:16 PM MST - Updated March 5 at 4:16 PM TUCSON, Ariz. (KOLD News 13) - Registration for thousands of new vaccination appointments at the University of Arizona state-run site open Saturday, March 6, at 9 a.m. Appointments are available for nearly 13,000 shots starting Sunday, March 7, 2021, for people in priority groups 1A and 1B, which includes healthcare workers and residents and staff in long-term care facilities, those 65 and older, educators, and protective services workers, according to a news release from the Arizona Department of Health Services.