[Tangsen]

You repeat HC mistake.
First need to point out trial efficacy against hospitalization and death is on same range for all vaccines.
The efficacy you mention is against preventing asymptomatic infections.

Yes 10 times antibodies given 17 to 25% difference to asymptomatic infections for wuhan variant.
but it is observe mRNA saw more dramatic fall than the traditional ones against variants. 
This is likely due to that fact mRNA present only small partial of the whole virus. 
The breakthrough is more likely.

China do not declare their vaccine can prevent infection and do not treat covid as endemic, 
Therefore they put more cautions. 

Also their lockdown is smaller and shorter than previous, 
as they find ways to do speedy and rigorous testing.

Please do provide the evidence to back it up or any link to support what you state, so you can share it with everyone.