Could you please expand on what you mean here? When you say ‘given the infectiousness of this virus’, do you mean it’s a little infectious or a lot infectious? You seem to imply that ‘herd immunity’ won’t or can’t be reached without vaccination, so I want to read the first part of your sentence as claiming that the virus has characteristics that won’t allow it to reach enough hosts on its own. But high infectiousness – which I kinda thought the virus was deemed to have – and asymptomatic spread would seem to point in the opposite direction. Kinda hard to parse out the logic in this sentence.
Also, are you using ‘naive’ in some sort of colloquial or non-scientific way there? It is my understanding that ‘naive population’ has a specific scientific meaning of its own in this context, and that it’s not the one you gave.