CV and mad panic behaviour

[ElwoodBlues1]

That is not the case [member=57]ElwoodBlues1[/member]‍, many highly effective vaccines do not prevent infection.

For example the Hooping Cough vaccine doesn't prevent infection, but it 100% eliminates symptoms, which is why some anti-vaxers are so negligent when all they do is ask everybody else to get vaccinated and not vaccinate their own child!

FWIW, vaccines work one of two ways, they can provide an antibody response, so that generally prevents infections, or they can make the immune system T-Cells aware of proteins on the target virus or bacteria and cause the T-Cells to kill off the infection before it does harm. The T-Cell version does not to to stop you getting an infection, in fact T-Cells do nothing until the infection is in your system, but can be so effective at eliminating the symptoms and effects that you do not even know they have been infected. Of all the vaccines you ever had the functional split is about 50/50, which will surprise a lot of people.

Some vaccines stop you getting symptomatic disease, but others stop you getting infected too. The latter is known as “sterilising immunity”. With sterilising immunity, the virus can't even gain a toehold in the body because the immune system stops the virus entering cells and replicating.
Source: The conversation.com
I understand that most vaccines dont prevent infection but I was speaking in an ideal case...
I'm not a virologist just a simple elec engineer but getting to theme of my comments and thats the Chinese vaccine vs the others and I'm not sure you can return to normal in the big picture with one offering 50% effectiveness and others offering 90-95%.
Would you allow Brazilians, Indonesians, etc who have had the Chinese vaccine into Australia or allow them to travel without normal quarantine procedures?