Particle flows show how the coronavirus ramped up

<img width=“750” height=“411” src=“https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/03/Coronavirus-spread.png?fit=750%2C411&ssl=1" class=“attachment-medium size-medium wp-post-image” alt=“” srcset=“https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/03/Coronavirus-spread.png?w=1460&ssl=1 1460w, https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/03/Coronavirus-spread.png?resize=750%2C411&ssl=1 750w, https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/03/Coro …