Nevada reported more than 500 new cases of the coronavirus on Thursday, the biggest one-day increase yet as cases in the state climb. The 507 new cases mark the fifth time in the past 10 days Nevada had a new record for single-day jumps in new cases. Nevada also reported one new death from COVID-19 on Thursday, bringing deaths from the disease to 495. Gov. Steve Sisolak on Wednesday night announced face masks will be required in public spaces starting Friday after four weeks of growing virus numbers. Nearly 14,900 people have tested positive for the virus since the outbreak began.