3 ms·
There's plenty, Sinovac and Sinopharm to name a few. They aren't as effective because a dead virus doesn't trigger the same immune response as the live version.
by danzk 5y ago
There's plenty, Sinovac and Sinopharm to name a few. They aren't as effective because a dead virus doesn't trigger the same immune response as the live version. The western vaccines replicate an important piece of the live virus which produces a better immune response.