Not long ago, Denver Public Schools nurse Rebecca Sposato was packing up her office at the end of a difficult school year. She remembers looking around at all her cleaning supplies and extra masks and thinking, "What am I going to do with all this stuff?"
It was May, when vaccine appointments were opening up for the majority of adults and the Centers for Disease Control and Prevention were loosening mask guidance.
"I honestly thought we were trending down in our COVID numbers, trending up in our vaccine numbers," she says. "And I thought the worst was over."