Diseases like influenza and tuberculosis are transmitted through droplet viruses and have grave impacts upon Taiwan as we have cities with high population densities. Based on statistics from Taiwan Centers for Disease Control (CDC), 18,533 people were killed by tuberculosis in 1947, 89 children died because of poliomyelitis in 1982, 78 children died from enterovirus 71 in 1998 and 81 lives taken away by SARS in 2003. Even up until recently, influenza killed 55 people from 2018 October to 2019 February. These terrible numbers tell us that we need to confront the diseases head-on, linking up our medicine knowledge and research techniques with the world.