The best vaccine is the first one available. The thing that protects you is aggregate herd immunity, not the individual personal effectiveness (so long as the first vaccine available has a breakthrough rate under 1-1/r0).
The first vaccine available is not guaranteed to be the best one forever, breakthrough rates and effiacy rates are important.
China cannot change their vaccine of choice (Sinovac) due to political constraints, which is why they are stuck with COVID issues and most of the world have moved on.
The table in this article illustrates it very clearly. At this point in time Pfizer or Moderna are the best choices, unless you want to prolong COVID efforts.
China cannot change their vaccine of choice (Sinovac) due to political constraints, which is why they are stuck with COVID issues and most of the world have moved on.
The table in this article illustrates it very clearly. At this point in time Pfizer or Moderna are the best choices, unless you want to prolong COVID efforts.
https://news.cgtn.com/news/2021-02-28/COVID-19-vaccines-appr...