Global comparison of international (blue) and domestic (orange) transmissions over time.

The y-axis holds the total number of cases as a 14-day moving average, with respect to the samples chosen for phylogeny construction (). The dotted and dash-dotted vertical lines (green) mark the time of the travel ban to/from the countries and the earliest minimum number of departures during travel ban, respectively. International (blue) and domestic (orange) transmissions. (ZIP)