Lena Sun clears up what “social distancing” means and why it’s important. William Wan explains why it’ll probably take months — not weeks — for the coronavirus threat to subside. And Caroline Kitchener with tips on how to talk to friends about staying home. Read more:It’s a make-or-break moment with coronavirus to test a basic — but disruptive — public health tool.How long will social distancing for coronavirus have to last? Depends on a few factors.How to talk to your friends about social distancing when they’re still hitting the clubs.Follow the Post’s live coverage here. Subscribe to The Washington Post: https://postreports.com/offer