Colorado will receive an additional 27,000 vaccine doses in the next three weeks, Gov. Jared Polis announced at a news conference Tuesday, but supply struggles continue to slow the state’s ability to distribute the vaccine.

Polis lamented that although the state has the ability to distribute significantly more vaccines than it is now, federal supply has strangled that capacity.

The state this week has turned to vaccinating its educators and those 65 years of age and older, while focusing on the home stretch of its goal to vaccinate at least 70% of its 70-and-older population.

Though the state has held several mass-vaccination events in recent weeks, Polis noted they’re often once-a-week affairs.

UCHealth and others could conduct them several times a week, were vaccine more readily available.

Despite the limited supply, Polis said he remained confident that at least 90,000 educators – out of roughly 120,000 eligible – would be vaccinated in the next three weeks.

But Denver Public Schools said Monday that the district was expecting 1,000 doses a week- though they received 1,500 this week – and that they had 14,000 employees, plus thousands more part-timers and subs.

Five thousand of those have already been vaccinated, a spokeswoman said, but that still leaves more than 10,000 to be inoculated.