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Layman here. Curious: if this is true, that you don't gain long term immunity to SARS-2 by catching COVID, would that have any implications on potential vaccine

Layman here. Curious: if this is true, that you don't gain long term immunity to SARS-2 by catching COVID, would that have any implications on potential vaccine in the future? Does this mean, this virus is something we cannot build a vaccine for? Does this mean even if we have an approved vaccine, it would likely have a very low probability to protect us? Or do RNA vaccines work in a way that affects our immune system that's entirely different than how immune system builds immunity against the virus itself?

ping_pong 7y ago
There was an experiment done a few weeks back where they infected rhesus monkeys with SARS-CoV-2 and the monkeys were subsequently immune. So the idea that we humans don't get some amount of immunity would be hard to believe. https://www.biorxiv.org/content/10.1101/2020.03.13.990226v1 https://www.biorxiv.org/content/10.1101/2020.03.13.990226v1