Year in Review: 2021 Was a Roller Coaster. We Must Stay Hopeful in 2022

The world saw many ups and downs in 2021 — energy revolution, digital empowerment, as well as the raging pandemic.

Ever since the pandemic began two years ago, new Covid variants have emerged one after another. Some countries have repeatedly locked down and reopened their societies while China has taken targeted prevention and control measures to implement its dynamic zero-infection strategy. The medical field has made great headway in Covid vaccines and medicines; the public has been forced to gain a much better understanding of viruses and has grown accustomed to a life that might be interrupted by pandemic-related matters at any time.