Health experts are split on when the U.S. will reach COVID-19 herd immunity

A person wears a mask.
(Image credit: Getty Images)

There's rising hope among some health experts that America will achieve herd immunity to COVID-19 sooner than expected — and a healthy dose of skepticism to match.

In a Wall Street Journal op-ed published Thursday, surgeon Marty Makary argued that the U.S. looks on track to reach herd immunity by April, and that health officials should say it. He pointed to an example of herd immunity seemingly achieved in a Brazilian city, and suggested more Americans may have had COVID-19 than we actually realized.

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