回复11楼:
自己去看,除了五毛,复星自己敢不敢说跟辉瑞没有关系?
Manufacturing the vaccine requires a three-stage process. The first stage involves the molecular cloning of DNA plasmids that code for the spike protein by infusing them into Escherichia coli bacteria. For all markets, this stage is conducted in the United States, at a small Pfizer pilot plant in Chesterfield, Missouri.
https://en.wikipedia.org/wiki/Pfizer%E2%80%93BioNTech_COVID-19_vaccine
https://www.nytimes.com/interactive/2021/health/pfizer-coronavirus-vaccine.html