Coronavirus protective immunity is short-lasting https://www.medrxiv.org/content/10.1101/2020.05.11.20086439v2.full.pdf … https://twitter.com/apoorva_nyc/status/1273624551952392196 …pic.twitter.com/e1nGPJccwp
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Clinically - yes, biologically - no
nAbs is one thing, immunity something else - and for COVID-19, we just don't understand immunity. All these studies are focusing too much on nAbs and too little on e.g., role of T-cells and non-neuts. Yes, I'd like to see long-lasting nAbs, but we don't know if they're required.
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I completely agree.
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The worst interpretations of these papers conclude that "immunity doesn't exist in most people" (because, lack of neuts). If that was the case, we'd see report after report about reinfections by now - and we don't. So it works, but how long is an open Q (and it's more than neuts)
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This is exactly why I’m happy I’m a virologist and not an immunologist...too complex! In all seriousness though I completely agree. Lots of discussion up here about broad serology but not nearly enough in characterizing immune responses in survivors
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Complex = exciting
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I honestly don't know what I am these days ("infectious disease researcher"?), but I do miss some of that good old-skool immunology back in my T-cell days 
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We might need a new term to describe (what seems to me) a most likely outcome: a state in which a person can be infected, maybe even infect others, but not develop severe disease. It might be the state that we already have with other CoVs, making them generally mild & endemic.
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Also what IPV does for polio.
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