Reuters  |  January 13, 2021

When do you estimate the United States will achieve herd immunity? What about globally?

“There are big problems for global herd immunity — even if the U.S. reaches wide coverage, because of vaccines being hoarded by rich countries, much of the world won’t. Seventy countries will only be able to vaccinate one in 10 people this year. Without change this means a continuing pandemic.”

— Matthew Kavanagh, assistant professor of global health and visiting professor of Law at Georgetown University; director of global health policy & politics initiative at O’Neill Institute

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