A growing list of huge companies, from Google to Walmart and Tyson Foods to United Airlines, have announced they’ll require shots for employees, customers or both. Restaurants and other small businesses are, too. But making a mandate is one thing; figuring out the enforcement, the caveats and the impact is another. On today’s show, MIT Technology Review reporter Mia Sato walks us through how these mandates happened, who gets left out from them and whether corporate America can actually save “hot vax summer” from the surge in delta variant cases.

Here’s everything we talked about today:

Read the transcript here.

Our show needs your voice! Tell us what you think of the show or ask a question for our hosts to answer. Send a voice memo or give us a call at 508-82-SMART (508-827-6278).