What are you even talking about? Do you have any models that so far have been consistent with reality to support the idea that current ideas of vaccination and surgical mask wearing would actually meaningfully protect octogenarians from getting a SARS-CoV-2 (virus that causes COVID-19) infection before they die? What people like Vincent Racaniello, Daniel Griffin, and Paul Offit say is that immune memory pretty much can't be formed to any protective extent in people that old, so the correct strategy is for immune compromised, old, and otherwise high-risk people to make plans with their doctors to immediately take Paxlovid after infection is first detected, or otherwise to be infused with Remdesivir (Veklury) if that's not possible. For people like this, repeated boosting is just one step forward, and (a couple months later) one step back. The immune memory and anamnestic response never becomes enough. As far as anyone can tell, current vaccination strategies can't halt transmission anywhere in the world in real-life conditions, and it's highly unethical to give someone a biologic when the risk of that biologic outweighs the risk of not getting that biologic, or getting a less risky alternative.
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