United Food and Commercial Workers Southern California locals representing Kaiser Permanente pharmacy and laboratory employees protest in Oakland, Calif., in an undated photo. The union said it delivered a 10-day unfair labor practice strike notice to Kaiser Permanente executives, with the strike set to begin on Monday, Feb. 9, 2026, at Kaiser facilities to protest Kaiser's labor violations throughout negotiations that have jeopardized patient care quality and prevented frontline health care workers from getting the fair contract. ( United Nurses Associations of California/United Food and Commercial Workers via Bay City News)

A union representing about 3,000 pharmacy and lab workers is threatening to join Kaiser Permanente nurses and other health care workers in the nation’s largest health care strike.

About 31,000 employees represented by the United Nurses Associations of California/Union of Health Care Professionals walked off the job in California and Hawaii on Jan. 26 over contract talks that began in May 2025.

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