The proposed new guidelines are in the works even as the nation mourns some 13,000 deaths from the virus and grapples with a devastated economy and medical crises from coast to coast. Health experts continue to caution Americans to practice social distancing and to avoid returning to their normal activities. At the same time, though, they are planning for a time when the most serious threat from COVID-19 will be in the country's rear-view mirror.

Dr. Anthony Fauci, the nation's top infectious disease expert, said if the existing guidelines asking people to practice social distancing through the end of April are successful in halting the spread of the virus, more relaxed recommendations could be in order.

"If, in fact, we are successful, it makes sense to at least plan what a re-entry into normality would look like," Fauci said on Fox News Channel. "That doesn't mean we're going to do it right now, but it means we need to be prepared to ease into that."

Under the expected new guidance from the Centers for Disease Control and Prevention, people who have been exposed to someone who was infected would be allowed back to work if they are asymptomatic, take their temperature twice a day and wear a face mask, said a person familiar with the proposal under consideration. The person described the proposal on the condition of anonymity because the draft had not been finalized.