In the long history of human beings, people have been seeking ways to get rid of various plagues and diseases, but there is only a short history to fight against diseases through vaccination. It was not until the 20th century that the routine vaccination of large populations was gradually popularized, and was increasingly widely known and accepted by the public.

The outbreak of covid-19 (covid-19) since the beginning of 2020 has changed China, the world and everyone's life. Of course, the development of the vaccine industry in the new era of the epidemic has also ushered in new historical opportunities. COVID-19 is testing the global supply chain. As one of the key areas highly dependent on the global supply chain, biopharmaceutical is facing problems such as shortage of pharmaceutical raw materials and insufficient production capacity. The surge in global demand for vaccines in the short term also has an impact on the supply of biological drugs.