Huang Shangjia said he was happy to hear that everyone has the same view on herd immunity. "We are all aware that vaccines are an effective weapon to protect us. We also exchanged our ideas on how to use the support and coordination from the government and authoritative organizations. Some ideas are amazing. I learned a lot from it. The clear mind and broad vision of the foreign friends impressed me deeply and made me consider what I can do more at the anti-epidemic fight."

He also expressed that it is a unique and valuable experience for him. "This time, I know a lot of cities that I didn't know before. I hope that the exchanges between the sister cities can continue and even more cities can join us. As part of the community with a shared future for humanity, young people in the new era should assume social responsibility and play an exemplary role. It is a wonderful platform for us."