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If your immune system was able to beat it once, it is primed to quickly take it out the second time (probably before you even have symptoms.) This is the entir

If your immune system was able to beat it once, it is primed to quickly take it out the second time (probably before you even have symptoms.) This is the entire premise behind vaccinations. Regrettably, some viruses-- such as flu -- come in several different strains during a season; an immunity to one may not result in an immunity to another (but, an immunity to any strain of influenza seems to limit the severity of infection with other strains.) And some illnesses -- such a the common-cold -- are caused by several totally different viruses; an immunity to one doesn't make you immune to the 200+ other types of viruses that give you "the cold." But, I've seen nothing to date indicating there are numerous COVID-19 strain floating around. That would be unusual.

pupppet 7y ago
Ah, makes sense.
flukus 7y ago
> If your immune system was able to beat it once, it is primed to quickly take it out the second time (probably before you even have symptoms.) This isn't always the case, chickenpox can lie dormant for most of your life and reactivate as a far worse shingles. There are some sources claiming reinfection is possible and that it's worse than the initial infection for coronavirus, I'd take that with a large dose of salt for now, but it's not safe to assume you'll be immune once you beat it, even if it doesn't cause long term damage.