Does China really think the rest of the world would dare take their vaccine?

Why not - so long as it has gone through extensive trials and meets the required standards of the country intending to use it.

Who do you think manufacturers most of the prescriptions you take every day.... China

Of course Canada is paying them for it. Other countries too.
Lots of tests come from China too.

I guess that China are the ones who engineered and invented the virus. They know its genetic code so they have a powerful vaccine or "antidote" that works in a key-and-lock fashion. Therefore it's gonna be the most effective

It’s only some western countries that have a problem with China. Shouting the loudest doesn’t make people a majority

Who knows except the Chinese?

Hmmm... An American, Russian or Chinese vaccine. So many great choices.

They may have had it before they released the virus.

Made in China virus and vaccine.

i met a guy from vietnam once

Yes