NPR’s Anya Kamenetz explains how America is sending its kids back to school while delta surges. Politico’s Lauren Gardner has the latest on vaccines for kids.

Today’s show was produced by Miles Bryan, edited by Matt Collette, engineered by Efim Shapiro, fact-checked by Laura Bullard, and hosted by Sean Rameswaram.

Transcript at vox.com/todayexplained.

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