Colorado announced more changes to its vaccination prioritization phases Friday, cutting down the number of people who will become eligible when the next phase starts next week.

Grocery and agriculture workers, people over 60 and anyone 16 or older with two or more conditions that put them at high risk of severe illness from COVID-19 will be the next groups eligible to receive vaccines, Gov. Jared Polis said.

The latest change separates workers in those industries from other essential workers, in...