Public health officials will reinstate an indoor mask mandate for residents of the most populous county in the nation as coronavirus cases rise just one month after the state reopened its economy.

Fueled by the quickening spread of the delta variant, the mask ordinance will go into effect late Saturday and will apply to everyone regardless of vaccination status. Exceptions will apply, but those were not immediately clear Thursday. The Public Health Department said it will release full guidance no later than Friday.

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