This month, a Nagoya art gallery exhibited posters for the prevention of Spanish flu in the Dazheng era, which everyone was very concerned about. We also took a look. I learned that the Spanish flu that occurred in 1918 swept the world, similar to the current new coronavirus. However, I guess the poster-painting person at the time completely unexpected that more than 100 years later, it will still be on fire [Yun Pai]