COVID-19 Vaccine Update: What Are the Phases and Where Are We Now?

Updated: 12 hours ago

Yolo County has now begun distributing and administering COVID-19 vaccines. In the first shipment of vaccines, Yolo County received 975 Pfizer doses, which began being administered the week of December 14, 2020. Vaccine distribution has been organized into both phases and, within those phases, tiers. According to the Yolo County website, Phase 1A prioritizes people who are at risk of exposure to COVID-19 due to their working “in any role in direct health care or long-term care settings.” In Phase 1B, essential workers are prioritized, along with aging, at-risk individuals. Phase 1C prioritizes adults aged 65 and older, additional at-risk individuals, and additional workers. Distribution rankings for Phases 2 and 3 have not yet been released.

We are currently (as of December 30, 2020) in Phase 1A, Tier 1, vaccinating acute care, psychiatric and correctional facility hospitals, and both staff and residents in skilled nursing facilities, assisted living facilities, and similar settings for older or medically vulnerable individuals. Up next in Phase 1A, Tier 1, are paramedics, EMTs, and others providing emergency medical services, followed by Dialysis centers.

Check out the following infographic for more information on the tiers and phases:

These phases and tiers may change based on local vaccine availability and the distribution guidelines from the State of California, so check the Yolo County Vaccine page for regular updates.


(530) 757-5583

600 A St. Suite C

Davis, CA, 95616

©2019 by Yolo Healthy Aging Alliance.