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Opinion
Scott Duke Kominers

World Can Have Covid Boosters and Its First Doses, Too

There is a way to bolster existing immunity and speed up the next phase of vaccination at the same time.

The very definition of a public good.

The very definition of a public good.

Photographer: Thomas Coex/AFP — Getty Images

As the U.S. and other developed countries start rolling  out Covid-19 vaccine booster shots, many are expressing concern that this will slow down the global vaccination campaign — prolonging the pandemic and causing significant harm along the way.

But there is a way to deliver boosters and speed up the next phase of vaccination at the same time. It’s the difference between pushing and pulling.