Phase 1a includes healthcare personnel and long-term care facility residents. Phase 1b includes persons ≥75 years of age and frontline essential workers.
Phase 1c includes persons 65-74 years of age, persons 16-64 years of age with high-risk medical conditions, and other essential workers.ACIP defines frontline essential workers as the subset of essential workers likely at greatest risk for work-related exposure to SARS-CoV-2, the virus that causes COVID-19, because their work-related duties must be performed onsite and their duties involve being in close proximity (<6 feet) to the public or coworkers.
Further information on the essential workforce can be found in the Cybersecurity Infrastructure and Security Agency’s (CISA) Guidance on the.