OMG.Then why can you still get covid and spread it.
People get the common flu shot every year, some people still get the flu.
That's because they have a weak immune system.
Just like jumping a car battery, if it is totally dead partially dead or fully charged and you just left your headlights on.
No amount of vaccine is going to help some people, some will save them from dying and some will even stay out of the hospital, altogether.
That's the way a vaccine works.
Every year, they change the common flu vaccine a little because the flu mutates every year.
That's what omicron is, a mutation of the Delta, which is a mutation of covid-A.
This mutation, omicron will kill some people, some will be hospitalized, some might not be effected at all but exposure, even though you have no symptoms, you still can spread it.
Just like the common cold or flu, it may take days for you to feel effects, meanwhile, you have infected 5 or ten people and so on.