US COVID-19 Cases Spread From Coastal Zones, Urban Centers

International commerce and traffic through US east and west coasts acutely and rapidly escalated COVID-19 case volume, while high population urban centers are likewise now hot beds for the virus to spread, given higher population density, use of public transport, and other related factors. Look at the relatively dark colors in Austin, Dallas, in Houston, Texas (Travis, Dallas, and Harris counties, respectively), as well as Milwaukee and Madison, Wisconsin (Milwaukee and Dane counties).

Urban centers in the United States, just as Italy tried to warn the world, are also transmitters as people exit the city and return to more rural areas. Look at Seattle: As cases ticked up, residents with means traveled to family and second homes in Sun Valley, Idaho (Blaine County) and brought the virus with, bringing normal activity to an abrupt halt for its citizens. For that reason, government officials yesterday urged all people leaving New York City self-quarantine for 14 days.