The story of Wuxi in China and Toyokawa in Japan, its sister city. In February, Toyokawa sent masks to help fight coronavirus in Wuxi. Now Wuxi is returning the favor. This is the way it’s supposed to work: with resources going to the place of greatest need. And it helps us understand something about how the global economy might eventually recover.

The latest in-depth coverage covering the intersection of technology and culture. WIRED’s award-winning journalism will help you make sense of a world in constant transformation. Join us as we explore the ways technology is changing our lives.