What, specifically, are those mechanisms that you think prevent symptoms but allow for infection and spreading?
Additionally, even if this mechanism exists, why would we care? The goal is not eradication of the virus at a molecular level, it is stopping the disease at a societal level. Stopping the disease is accomplished when symptoms are prevented. Because symptoms kill people, not the virus.
There is an incredible misunderstanding about the difference between a disease (i.e., symptoms caused by a virus) and the virus that causes it. Viruses, bacteria, spores, and other toxic material is everywhere constantly. COVID is the only virus I can think of where we have been actively scared of the mere existence of the virus.
> What, specifically, are those mechanisms that you think prevent symptoms but allow for infection and spreading?
Asymptomatic spreading. Kids do it with SARS-CoV2 all the time.
In other words: the body sheds virus (cells fabricate virions), but the immune system reaction doesn't cause symptoms.
> Additionally, even if this mechanism exists, why would we care?
Because the virus will keep spreading and killing people as long as < 70% of people remain infectious.
In case the vaccine doesn't prevent much of the spreading, we'd be looking at years before everything is like it was before the pandemic. This is because we're not going to vaccinate 5 billion people in a matter of months all at once (too risky). This will take a while.
Additionally humans would be a reservoir for the virus to evolve in, potentially causing mutations that cause symptoms (years or decades in the future). It wouldn't actually solve the problem in the long run.
You think... a vaccine is going to CAUSE asymptomatic spreading? I think you need to start citing some science here. Things you are saying really aren't making sense.
Additionally, even if this mechanism exists, why would we care? The goal is not eradication of the virus at a molecular level, it is stopping the disease at a societal level. Stopping the disease is accomplished when symptoms are prevented. Because symptoms kill people, not the virus.
There is an incredible misunderstanding about the difference between a disease (i.e., symptoms caused by a virus) and the virus that causes it. Viruses, bacteria, spores, and other toxic material is everywhere constantly. COVID is the only virus I can think of where we have been actively scared of the mere existence of the virus.