The west coast spread was slowed down by the Rocky Mountains. Obviously, the Appalachians are more populated than the Rockies and deserts so the east coast spread much more rapidly. Go back to the maps to see the movement. In rural areas, there may only be one or two grocery stores per county so everyone will shop there. All it takes is one infected person who likely commutes to the city to bring it in and shops at the one grocer and pumps gas at the main intersection in town.
I was in CVS today and every employee had a mask on with a sign that said due to coronvirus it might take longer to get presciptions due to short staff
I might have walked into a location that had a staffer with it.
Gee thanks
I will be taking my zinc and Quercetin for the next 5 days