Calibrate Beta based on observed r

[alsnhll]

From country-specific data

Make sure to follow best epi practices for this - should be fitting to incidence, not prevalence, and should ideally have cases labeled by date of onset, not date of reporting, to avoid issues with reporting bias. The fitting methods described here are probably very rigorous: https://cmmid.github.io/topics/covid19/current-patterns-transmission/global-time-varying-transmission.html

[mzlevy]

state data from: https://coronavirus.1point3acres.com/en?sfns=mo