Featured in herd immunity

There are more immunocompromised Americans than we think, and that’s a problem with COVID-19 vaccines
The US joined the push to waive COVID-19 vaccine patents. Will it actually help?
The US might never reach herd immunity—here’s why
Ramping up COVID-19 vaccine production is harder than it seems
Why South Africa stopped using the AstraZeneca COVID-19 vaccine
Israel leads the world in vaccination rates, but a key group is missing from the data
The CDC thinks 90 percent of the US could still catch COVID-19
A Brazilian city may have achieved herd immunity to COVID-19—but not without a cost
Herd immunity alone won’t stop COVID-19. Here’s why.
Why only half of Americans say they would get a COVID-19 vaccine