This seems the latest guidance
Symptoms, testing, what to do if sick, daily activities, and more.
www.cdc.gov
With specific exceptions, foreign nationals who have been in any of the following countries during the past 14 days may not enter the United States. For a full list of exceptions, please refer to the relevant proclamations in the links below.
China
Iran
European Schengen area (Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, Monaco, San Marino, Vatican City)
United Kingdom (England, Scotland, Wales, Northern Ireland)
Republic of Ireland
Brazil
Seems to me, if you leave one of the areas and go to a "neutral" country for 14+ days, then you can enter the US??