WINDOW ROCK, Ariz. — Navajo Nation health officials reported 310 new coronavirus cases and two more deaths on Wednesday.

The vast reservation includes parts of Arizona, New Mexico and Utah. Tribal health officials say 166,517 people have been tested.

Residents remain under a stay-at-home order, with an exception for essential workers and essential needs like food, medication and emergencies. Essential businesses also have been ordered to limit hours to 7 a.m. – 3 p.m. daily. A mask requirement has been in place for much of the year.

Tribal officials say the Navajo Nation has 17,035 confirmed cases and 658 confirmed deaths since the start of the pandemic.