FILE - In this March 31, 2021, registered nurse Sofia Mercado, right, administers a COVID-19 vaccine at a vaccination event for workers at an Amazon Fulfillment Center in North Las Vegas, Nev. Nevada health officials are redoubling efforts to make it easier to get COVID-19 shots — with new drive-thru clinics in working-class neighborhoods in Las Vegas and expanded outreach to Reno's Hispanic community — to try to reverse a decline in vaccinations statewide. (AP Photo/John Locher, File)

Medical assistant Diocelina Valdovinos administers the Moderna COVID-19 vaccine at a vaccination center at UNLV, Monday, April 26, 2021, in Las Vegas. Nevada health officials are redoubling efforts to make it easier to get COVID-19 shots, with new drive-thru clinics in working-class neighborhoods in Las Vegas and expanded outreach to Reno's Hispanic community, to try to reverse a decline in vaccinations statewide. (AP Photo/John Locher)

A nursing student administers the Moderna COVID-19 vaccine at a vaccination center at UNLV, Monday, April 26, 2021, in Las Vegas. Nevada health officials are redoubling efforts to make it easier to get COVID-19 shots, with new drive-thru clinics in working-class neighborhoods in Las Vegas and expanded outreach to Reno's Hispanic community, to try to reverse a decline in vaccinations statewide. (AP Photo/John Locher)

Johnson Shao, a nursing student at the College of Southern Nevada, administers the Moderna COVID-19 vaccine at a vaccination center at UNLV, Monday, April 26, 2021, in Las Vegas. Nevada health officials are redoubling efforts to make it easier to get COVID-19 shots, with new drive-thru clinics in working-class neighborhoods in Las Vegas and expanded outreach to Reno's Hispanic community, to try to reverse a decline in vaccinations statewide. (AP Photo/John Locher)