Lab professionals at Labcorp held a union election from March 1 to 3, where 434 workers voted to join the Oregon Federation of Nurses and Health Professionals, an affiliate of the American Federation of Teachers (AFT). The new union members work at labs in Portland, Oregon, and Salmon Creek, Washington, and include medical technologists, lab specialists and phlebotomists. The workers are the latest in a wave of health care unionization.