https://www.siliconvalley.com/2021/07/30/covid-delta-variant-may-spur-new-bay-area-mask-mandates/ > The Bay Area may be on the cusp of new mask mandates as early as next week to slow surging COVID-19 infections after a U.S. Centers for Disease Control and Prevention study Friday found the highly contagious delta variant may spread as easily among the vaccinated as unvaccinated. > “We are very vigorously exploring issuing an indoor mask mandate and in discussions with surrounding counties and health officers with regard to that,” San Francisco health director Dr. Grant Colfax said Friday.