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Is the goal of vaccinating 70% of the world's population against COVID still realistic?

Jun 1, 2022
WHO set the vaccination goal for mid-2022, but health researchers say the mutating virus that spreads more easily means we need to set new priorities for global health.
Health researchers say the mutating virus, which spreads more easily means we need to set new priorities for global health.
John Wessels/AFP via Getty Images

Biden administration rolls out new vaccine incentives

Jun 4, 2021
About 63% of Americans have gotten at least one vaccine dose. The Biden administration wants to get to 70% by July 4.
From free donuts to lottery entries, do vaccine incentives work?
Scott Olson/Getty Images

In some parts of the country, vaccination rates lag

May 21, 2021
Health professionals in Arkansas say there are a variety of reasons why people there are hesitant to get vaccinated.
Mary Kate and Tim Pricop visit a horse racetrack in Hot Springs, Arkansas, with their children on a weekday afternoon. The couple plan to pass on getting a COVID-19 vaccine.
Sarah Whites-Koditschek

When will there be enough herd immunity to return to the workplace?

Mar 23, 2021
For COVID-19, predictions of what it will take to reach herd immunity vary wildly, and it's more complicated than one magic number.
Don't count on herd immunity to eliminate workplace COVID-19 precautions just yet.
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Herd immunity, explained

Feb 10, 2015
Vaccination only works if most of the population has been inoculated.
Miami Children's Hospital pediatrician Dr. Amanda Porro, M.D prepares to administer a measles vaccination to Sophie Barquin,4, as her mother Gabrielle Barquin holds her during a visit to the Miami Children's Hospital.
Joe Raedle/Getty Images