www.cnn.com/2021/07/08/health/undervaccinated-clusters-covid-risk
USA (Covid-19) = Five Undervaccinated Clusters (Geographic Locations)
Put the entire United States at risk ; 2021.07.08
https://ix.cnn.io/dailygraphics/graphics/20210707-us-vax-clusters.jpg
MAP of Undervaccinated Clusters in USA (URL above)