COVID-19 Air Traffic Visualization: Air Passenger Transmission Risk to GCC Countries Originated from Outside the Region [open html - 0B]
From the Key Finding: "Transmission risk resulting from air travel is often global rather than regional in nature. Although regional countries often have more connectivity with one another than with countries outside the region, the GCC [Gulf Cooperation Council] countries are highly connected globally. As a result, most of the COVID-19 [coronavirus disease 2019] transmission risk for most GCC countries originated from air travelers outside the region, first from China and then from elsewhere."
2020 RAND Corporation
RAND Corporation: http://www.rand.org/