Unionized healthcare workers began a 24-hour strike on August 28 at five California hospitals operated by the Daughters of Charity Health System. Food-service workers, radiology technicians, housekeeping staff, and other employees represented by the union have been without a contract since the previous one expired in April. Unresolved issues include wages, benefits, and employee involvement in staffing decisions. The union represents about 2,000 employees at the five hospitals.