Congress' in-house doctor told Capitol Hill staffers at a close-door meeting this week that he expects 75-150 million people in the U.S. — roughly a third of the country — to contract the coronavirus, two sources briefed on the meeting tell Axios. Why it matters: That estimate, which is in line with other projections from health experts, underscores the potential seriousness of this outbreak even as the White House has been downplaying its severity in an attempt to keep public panic at bay.