The United States has never undertaken a vaccination campaign of the scale and speed of the Covid-19 program. Despite a few glitches, the country appears to be on track to offer shots to all adults who want one by May 1.

We look at the ups and downs in the American vaccination campaign and describe what life after inoculation might look like.

Guest: Apoorva Mandavilli, a science and global health reporter for The New York Times. 

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Background reading: 

• It’s not clear how easily vaccinated people may spread the virus, but the answer to that question is coming soon. Until then, scientists urge caution.
• Many scientists are expecting another rise in infections. But this time, vaccinations should help to counter the surge. By summer, Americans may be looking at a return to normal life.

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