Last Thursday, Governor Mike Parson announced Missouri would enter Phase 1B of COVID-19 vaccine distribution, making millions of Missourians eligible for vaccination. But the vast majority of those eligible still have to wait to be inoculated. That’s because supply of the two vaccines approved for distribution — from Pfizer and Moderna — hasn’t mirrored the growth in eligibility. Sara Humm is with the Columbia/Boone County Public Health and Human Services department. She says the department is still prioritizing 1A — health providers and long-term care facility residents — and the first tier of 1B, which includes emergency responders. "“The state said that we could start working on tier 2," Humm said. "The reason we haven’t is we do not have enough vaccine to do so.”