More than 25 million vaccines have been distributed by the federal government, but only slightly more than one-third of those have made it into peoples' arms. Vaccine mega-sites are opening in major cities around the country as local officials try to speed up vaccination.

There's also been pressure to expand the groups of people who are eligible for the vaccines. From Nashville, WPLN's Blake Farmer reports on how that pressure is often forcing those who administer the shots will to take people's word for it on whether they qualify.

One state is doing better than every other when it comes to giving shots: West Virginia. NPR's Yuki Noguchi explains why.

Additional reporting this episode from NPR's Selena Simmons-Duffin, who's looked into how to improve America's vaccine rollout.

In participating regions, you'll also hear a local news segment that will help you make sense of what's going on in your community.

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