Arizona Public Radio | Your Source for NPR News
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations
Service to KNAG 90.3 Grand Canyon is restored. Thank you for your patience and support.

Arizona Public Radio continues to integrate new audio software while addressing remaining glitches. We appreciate your patience and support and will update when all issues are fully resolved.

A new study sheds light on the elusive idea of herd immunity

Countries around the globe have tried lifting pandemic restrictions in the hopes that somehow getting herd immunity will stop the spread of the virus, only to see more coronvarius infections.

A new study focusing on Iran sheds light on what happens when we try to control the spread of COVID-19 through the notion of herd immunity over other measures — say like shutdowns or vaccines.

Copyright 2021 NPR. To see more, visit https://www.npr.org.

Asma Khalid is a White House correspondent for NPR. She also co-hosts The NPR Politics Podcast.