An indoor mask mandate has been reinstated in Santa Cruz County, California, after a surge in winter coronavirus cases has led to increased hospitalizations.

The county health department is requiring that people wear face coverings in indoor settings, including in private homes. The mandate went into effect on Sunday at 11:59 p.m, after the county reported a seven-day average of 72 coronavirus cases per 100,000 people — placing it in the "substantial" transmission category, according to the CDC.