There's a global pandemic treaty that's signed -- and in 'limbo.' What's the holdup?

The treaty aims to help the countries of the world prepare for — and defeat — any future pandemic. Why hasn't it gone into effect?

<img src='https://npr.brightspotcdn.com/dims3/default/strip/false/crop/5000x3750+0+0/resize/5000x3750!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Fcc%2Fc1%2F28098e704f97bdaa12c607baf7b0%2Fcovid-dna-1203072511.jpg' alt='These letters are part of the genetic sequence of the novel coronavirus that sparked the global pandemic. A new treaty aims to promote the sharing of such information among nations for any future virus that threatens the planet.'/><p>The treaty aims to help the countries of the world prepare for — and defeat — any future pandemic. Why hasn't it gone into effect?</p><p>(Image credit: Smith Collection/Gado/)</p><img src='https://media.npr.org/include/images/tracking/npr-rss-pixel.png?story=g-s1-144948' />