CDC study: In-person learning safe with precautions, but Pima County taking it slow CDC school recommendations By Karly Tinsley | January 27, 2021 at 9:50 PM MST - Updated January 28 at 5:43 AM TUCSON, Ariz. (KOLD News 13) - The Centers for Disease Control and Prevention says it is possible for schools to safely re-open and limit the spread of COVID 19. But local school leaders think it may take a little longer before Pima County is ready. “We were just one of the highest in the world,” said Pima County Superintendent of Schools, Dustin Williams, in regard to case numbers. “That’s a big concern. So when we hear the recommendation of the CDC, we also want to work really, really closely with the Pima County Health Department for their recommendations.”