About this episode
A vaccine will take a while, but Vox’s Umair Irfan says the global effort to test for immunity and treat Covid-19 is well underway. (An earlier version of this episode misidentified hydroxychloroquine as an active ingredient in aquarium cleaner. That's chloroquine phosphate.) (Transcript here .) Learn more about your ad choices. Visit podcastchoices.com/adchoices