‘Recognition of failure’: A shift urged in global vaccination strategy

Global health organizations are considering changing their Covid-19 vaccination pledges — a move that could leave millions of people without first shots as countries reprioritize at-risk groups in the coming months, according to four people familiar with the matter.

In June 2021, the World Health Organization initially proposed that 70 percent of the world population be vaccinated by mid-2022 to protect against new variants and help ensure people in poorer countries had equal access to the shot. But 47 countries still have inoculation rates below 20 percent.

Now, many health...