On October 27, in the influenza vaccine production workshop of Beijing Kexing Biological Products Co., Ltd., the staff inspected the chicken embryos, and the middle one was qualified chicken embryos.
Through the eggshell, the blood vessels of the chicken embryo are clearly visible. If the blood vessels of the chicken embryo are blurred or invisible, they cannot be used to produce vaccines.
Photograph by Xinhua News Agency reporter Zhang Yuwei Picture source: Xinhuanet
Release time: 2020-11-27 21:57:46 【Editor: Li Jun】