LAS VEGAS — Nevada will shift this week from broad restrictions in response to the coronavirus to an ongoing, county-by-county review where officials hope to target hot spots and specific businesses where the virus is spreading.

Gov. Steve Sisolak said Monday that the state would evaluate Nevada’s 17 counties weekly on their rates of new cases, positive tests and tests per day.

A new task force of state officials will review the data. If counties do not meet at least two of the criteria for two weeks in a row, the task force and county officials will come up with a response plan.

When asked if he would ever broadly shut down all the state’s casinos again, as he did in March, the governor said all options are open but casinos have been responsible and are not a major source of virus spread right now.

He said biggest problem Nevada officials have found with trying to stop the spread are two areas that are hard to control: family gatherings or people going to work when they’re sick or have tested positive.