More vaccines are headed to California’s vast Central Valley, an agricultural region whose workers and residents have been hard hit by coronavirus, Gov. Gavin Newsom said Monday.

The multi-county region, which includes the cities of Fresno and Bakersfield, will get significantly more vaccines this week dedicated to farmworkers. The shifting allocation comes as California moves to inoculate others beyond health care employees in other essential jobs, including food and farm workers and teachers.

California had been distributing doses based on the estimated number of health care workers and seniors in each county, but is revising its formula as it moves through its planned vaccination tiers.

Nov. 3—Stanford Medicine has begun enrolling volunteers to participate in a clinical trial for a coronavirus vaccine developed by Johnson & Johnson — one of a handful of efforts considered front-runners in the global race for a vaccine.

Enrollment for Phase 3 of the trial began Friday, marking the final stage before potential authorization in which tens of thousands of people receive the vaccine to see if it is effective. Stanford plans to enroll 1,000 volunteers as part of the global trial that will include 60,000 people at 180 sites around the world.