Coronavirus: How to Do Testing and Contact Tracing

Part 3 of Coronavirus: Learning How to Dance BY Tomas Pueyo

Translated in Persian (Farsi)- International Affairs, Ahvaz Jundishapur University of Medical Sciences

Anchorage School District nurse Bethany Zimpelman works on the COVID-19 contact investigations and monitoring team on Thursday, April 16, 2020. The team is made up of nurses from the municipality as well as from the Anchorage School District. (Loren Holmes / ADN) Anchorage Daily News

Source. Thank you Donald G McNeil Jr for the inspiration

A passenger scans a QR code to get his green pass at a subway station in Wuhan on April 01, 2020. Ng Han Guan/AP Photo, via Business Insider

Source. Note: The source includes a version of this chart with blue-red gradients with color-blind people.

Source: New York Times