tag | herd immunity

April 7, 2021 | 12:28 PM

Researchers warn vaccine refusal may put herd immunity at risk

A recent NPR/Marist poll found that one in four Americans said they would refuse a coronavirus vaccine outright if offered.

By Geoff Brumfiel/NPR
February 18, 2021 | 3:22 PM

How herd immunity works — and what stands in its way

Scientists say the pandemic will only end in the U.S. when we achieve what’s called herd immunity. Play with our simulations to see how immunity can stop an outbreak in its tracks.

By Thomas Wilburn and Richard Harris/NPR
February 3, 2021 | 7:55 AM

A rocky road on the way to herd immunity for COVID-19

New variants of the virus, for example, could create a new wave of infections, even in people who have been vaccinated or previously exposed. That could slow progress toward herd immunity – or, if the virus successfully evades vaccines, it could put herd immunity out of reach.
By Richard Harris/NPR

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August 9, 2020 | 8:48 AM

COVID-19 may never go away — with or without a vaccine

The first thing to remember is that we haven’t been successful at eradicating many viruses at all.

By NPR