What is herd immunity and can it stop the coronavirus?

Once enough people get Covid-19, it will stop spreading on its own. But the costs will be devastating.

 

 https://www.technologyreview.com/2020/03/17/905244/what-is-herd-immunity-and-can-it-stop-the-coronavirus/?utm_medium=tr_social&utm_campaign=site_visitor.unpaid.engagement&utm_source=Facebook#Echobox=1598984970