California virus cases rising as delta variant spreads Nurse Jessica Lipscomb gives Miguel Castro, 13, of Brentwood, the Pfizer COVID-19 vaccine in the Antioch Middle School gym in Antioch, Calif., May 19, 2021. In partnership with Kaiser Permanente and the Contra Costa Office of Education, the Contra Costa Health Services have started school-based COVID-19 vaccination clinics. While coronavirus cases remain low in California, the nation's most populous state has recently seen hospitalizations creep back up slightly. (Doug Duran/Bay Area News Group via AP) | Photo: AP By AMY TAXIN and STEFANIE DAZIO Updated: July 01, 2021 07:00 PM Created: June 30, 2021 10:04 PM LOS ANGELES (AP) - California broadly reopened its economy barely two weeks ago and since then an especially contagious coronavirus variant has spread among the unvaccinated, a development that has health officials on edge and already has prompted Los Angeles County to strongly recommend everyone resume wearing masks inside.