Window Rock, Ariz. • Navajo Nation health officials have reported 15 new confirmed cases of coronavirus, but no deaths for the third time in six days.

The latest numbers increase the total number of people infected to 9,969 with the known death toll remaining at 530 as of Saturday night.

Tribal health officials reported one new coronavirus case Monday and no additional deaths for the first time since March. They also reported no deaths on Wednesday.

They said 99,153 people have been tested for COVID-19 so far and 7,177 have recovered.

Much of the Navajo Nation has been closed since March as the coronavirus swept through the vast reservation that extends into New Mexico, Utah and Arizona.

Tribal officials are extending partial weekend lockdowns and daily curfews through September to help control the spread of the coronavirus.

The majority of people who are diagnosed with COVID-19 recover. For some people it causes mild or moderate symptoms such as fever and cough.

But for others who contract the virus, especially those who are older or have underlying health conditions, it can cause more severe illness and death.