(Portland, OR) -- Kaiser Permanente workers in the Portland area are starting a strike. Labor union UFCW Local 555 represents pharmacy employees who started a 21-day Unfair Labor PRactice strike on Sunday. This affects the Sunnyside Medical Center in Clackamas, Westside Medical Center in Hillsboro, and the Regional Lab Airport Way Center in Portland. This strike is separate from the more than 75-thousand Kaiser Permanente workers who are planning a multi-state strike starting Wednesday.