[somewhereoutth]

There is the innate immune system, and the adaptive immune system. If I understand correctly pathogen specific antibodies are created by the adaptive immune system, so maybe if the innate deals with the virus quickly the adaptive is not triggered.

There was a good TWIV podcast talking about this.

[nsxwolf]

If your innate immune system beats it, does that mean you're effectively already "immune" and are unlikely to develop serious COVID-19 disease when you catch the virus again, or was it just luck?

[LeoNatan25]

Probably luck. Given a much more potent viral load, it is more than likely the same patient can be infected again.

[nsxwolf]

There just doesn't seem to be any good news anywhere.

[BurningFrog]

That makes sense. I was not aware of the two separate immune systems.

So maybe 30% of people have an "innate" system well geared toward defeating this particular virus. Or/and they had a small exposure.