[General] It needs more than one billion vaccinated people to...

[Silverobama]

Recently I read a piece of news about the vaccination here in China. It says that China now has more than 1.6 billion people and if we want to be safe (without wearing masks), we need to inoculate more than one billion people to build the "immunity safety net/immunity shield". I wrote a sentence to express the idae:

It needs more than one billion vaccinated people to build the immunity shield.

Is my sentence natural? I don't think so. Would you please help me to improve it?

When I said "immunity shield", I mean the vaccinated people are immune against the virus and it's like shield to protect those who don't get vaccinated. I translated the term from Chinese.

 

[GoesStation]

China needs to vaccinate more than a billion people to achieve herd immunity or "build an immunity shield".

 

[Silverobama]

China needs to vaccinate more than a billion people to achieve herd immunity or "build an immunity shield".

Are they two sentences?

a) China needs to vaccinate more than a billion people to achieve herd immunity.
b) China needs to vaccinate more than a billion people to build an immunity shield.

 

[GoesStation]

Are they two sentences?

a) China needs to vaccinate more than a billion people to achieve herd immunity.
b) China needs to vaccinate more than a billion people to build an immunity shield.

No. I would have punctuated it differently to indicate that. You might write "… or 'build an immunity shield', as it's described in Chinese."

 

[tzfujimino]

I've heard the term 'herd immunity' a lot since the pandemic began, so I think 'achieve herd immunity', as GoesStation suggested, is the most appropriate expression to use in that context.