If you have problems viewing the video, check out the original animation.
The number of people who have tested positive for the coronavirus has been reported for days, weeks and months. But static numerals don’t show how quickly the disease has spread in each part of the United States.
We’ve used data collected by The Center for Systems Science in Engineering at Johns Hopkins University to build an animation that compares the number of positive tests in each state from March 10 to April 30.
It’s important to keep in mind that testing availability has been inconsistent, so the visualization represents where testing was happening more than where people were sick.
Information about how the numbers were aggregated can be found on the JHU site, where the data is mapped with technical help from Esri, a Redlands company that makes software that powers coronavirus maps for more than 3,000 organizations.
