Data for all countries are taken from https://github.com/CSSEGISandData/COVID-19/tree/master/csse_covid_19_data
Data for all US states are taken from https://covidtracking.com/us-daily/
Data for all countries are taken from https://github.com/CSSEGISandData/COVID-19/tree/master/csse_covid_19_data
Data for all US states are taken from https://covidtracking.com/us-daily/