UCLA and UC Irvine are among the University of California campuses where more than 20,000 health care, research and technical employees going on strike Tuesday over allegations of unfair labor practices.

Thousands of workers from University of California campuses and medical centers across the Bay Area walked off their jobs yesterday in a one-day strike. They are alleging staff shortages, bad faith bargaining,

For the third time in about four months, University of California health care and other workers walked off the job Tuesday.