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.

Cell culture technology is also called cell cloning technology, which is a formal term in biology. Whether for the whole bioengineering technology or one of the biological cloning technologies, cell culture is a process of cell replication, and cell culture itself is a large-scale cloning of cells. Cell culture technology can turn a cell into a simple single cell or a few differentiated multi cells through mass culture, which is the link of cloning technology, and cell culture itself is cell cloning. A large number of cells or their metabolites are obtained through cell culture. Because biological products are derived from cells, it can be said that cell culture technology is the core and basic technology of biotechnology

Cell culture has now become one of the main technologies used in life science. It is a general term for taking some tissues from the biological body and dispersing them into single cells or directly taking single cells from the body and cultivating them in an artificial environment conducive to growth. Cell culture media usually include appropriate cell energy sources and compounds that regulate the cell cycle. A typical medium also needs to be supplemented with amino acids, vitamins, inorganic salts, glucose, and serum to provide growth factors, hormones, and attachment factors.