You did say % so will apologise for my assumption.
Do you know though how long herd immunity would take to get to the needed % of population? 2 years is the mid estimate. How many will die in that time? Maybe that’s the game 
I mean, have you read the article that you've just tweeted at me? It actually is not great news for herd immunity, because it suggests that neutralizing antibodies may decline over time. While t-cells may protect against SEVERE infections, they do not prevent infection altogether
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Indeed, this article implies that herd immunity is probably an unreachable goal, because those who are infected are likely to experience reinfections (albeit less severe) as antibodies wane
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Oh I see! Is that why documented cases world wide of re-infection are only a handful?
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