Jan 11, 2021 - Health

WHO warns world won't achieve coronavirus herd immunity in 2021

World Health Organization (WHO) Chief scientist Soumya Swaminathan attends a combined news conference following a two-day international conference on COVID-19 coronavirus vaccine research

World Health Organization chief scientist Soumya Swaminathan. Photo: Fabrice Coffrini/AFP via Getty Images

World Health Organization chief scientist Soumya Swaminathan warned Monday herd immunity is unlikely to be achieved this year despite COVID-19 vaccines being rolled out.

The big picture: Mass coronavirus vaccinations are under way in the U.S. and across the world. Moderna said Monday its vaccine would provide immunity against the virus for at least a year. But Swaminathan told a briefing even if immunity "happens in a couple of pockets, in a few countries, it’s not going to protect people across the world" in 2021. "It takes time to scale the production of doses," she said.

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