Washington State vaccine phase 1 distribution through April

[M_T]

Washington State has published an estimated timeline for phase 1 vaccinations.
December: 1A1 & 1A2  High risk health care workers & first responders; LTCF residents. Workers in health care settings
January:  1B1 70+;  50+ in multigenerational households.
(Not vaccinating 1B1 yet. "later in January")
February: 1B2  50+ high risk critical infrastructure workers.
March: 1B3  16+ with 2 or more co-morbidities or underlying conditions.
April: 1B4  16-50 high risk critical infrastructure workers.

A related news story.