The coronavirus curves are starting to flatten — again. But complacency now could prove deadly.

In the coming days, some people — including possibly President Trump — may start to tout these improving numbers as a sign that the tide is turning in America’s long battle against the coronavirus.In response, the U.S. faces a choice. Either the rest of the country — including the 40 or so states where cases are still climbing — can learn from how New York and its neighbors behaved when they peaked in the spring: cautious, vigilant, data-driven and slow to return to