The Prince George’s County Council voted unanimously Monday to extend the county’s indoor mask mandate until early 2022.

This is the 15th time the council has voted to extend its emergency declaration related to the COVID-19 pandemic, according to WTOP.

The county has reported 512 new COVID-19 cases in the week of Nov. 21, according to the Prince George’s County coronavirus dashboard.

Prince George’s County is in an area of “substantial” transmission, according to the Centers for Disease Control and Prevention.

[UMD sees rise in COVID-19 cases after Thanksgiving break]

There have been 2 new COVID-19 cases detected by tests administered by the University of Maryland between Nov. 21 and Nov. 27, according to this university’s COVID-19 dashboard. More than 98 percent of the on-campus population is vaccinated, according to the dashboard.

Nearby Montgomery County reinstated its indoor mask mandate in late November after it was previously lifted for about three weeks prior.

Washington, D.C., Mayor Muriel Bowser lifted the district’s mask mandate  Nov. 16.