For those strategists interested in state-by-state COVID-19 data, this particular site provides visualizations of Rt data.
"Rt represents the effective reproduction rate of the virus calculated for each locale. It lets us estimate how many secondary infections are likely to occur from a single infection in a specific area. Values over 1.0 mean we should
expect more cases in that area, values under 1.0 mean we should expect fewer."
@RayBordogna opines on "strategy" concepts.