What It Would Take to Reach Herd Immunity WSJ

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Scientists are working at breakneck speed to develop an effective vaccine for the coronavirus. Their ultimate goal: to immunize enough of the world’s population to reach herd immunity. WSJ explains. Illustration: Jacob Reynolds • More from the Wall Street Journal: • Visit WSJ.com: http://www.wsj.com • Visit the WSJ Video Center: https://wsj.com/video • On Facebook:   / videos   • On Twitter:   / wsj   • On Snapchat: https://on.wsj.com/2ratjSM • #WSJ #HerdImmunity #Explainer

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