[mzltest]

OK now I understand thanks for explaining @tiwil.  I've got respect for your Government testing it.  In South Africa looks like the Government is going to do the same with testing the Chinese vaccine Sinovac.  Although I can't help but think that maybe they've already made a decision about it in the background with trying to please the Chinese.  I totally agree, vaccines may work differently in different environments and it's very important that they should be tested first.  Hopefully South Africa will give the testing a proper period of time instead of treating it like a quickie formality.

Yeah it needs re-testing before using a foreign vaccine.Actually as previously I might mentioned,is in blocked social medias like twitter,there are people saying the actual protection rate might is just around 50% and recently in Bilibili(native media) I saw they
admitting this statement but saying that the rate is lower than actual because not all control group attenders got covid-19. So I'd say it's safe , but I won't say it is that effective.

And yes.The vaccine expires within a year so that's another problem. It might be effective,but not efficient.It looks like you have to go to hospital not for diease,just for vaccination annually or less,thus probably the tendency for more doses that strengthen or just renew the effect will go down everytime a new shot is required.