Embracing that reality is crucial to the next phase of America’s pandemic response, experts say. There’s a good chance the coronavirus will never go away. Even after a vaccine is discovered and deployed, the coronavirus will likely remain for decades to come, circulating among the world’s population.

For all that’s still being discovered about the novel coronavirus, one thing was clear from the beginning: It moves. In just a few months, it sprinted around the world and left in its wake a trail of death, social paralysis, and economic ruin. Now, as some U.S. states start to lift pandemic-related restrictions on businesses and public spaces, there is a fear that infections will resurge in those places — and that if that happens, the virus won’t stay put.

The Centers for Disease Control and Prevention has tripled the number of coronavirus symptoms it lists on its website. The federal organization previously listed fever, cough and shortness of breath as symptoms of COVID-19. The CDC has added six additional symptoms as people “have had a wide range of symptoms reported,” it says on its website.

Health care workers on the front lines are desperate for resources, but those who speak out are being muzzled. “The reason they fired me was to conceal my voice,” says one Mississippi...