https://www.reuters.com/business/healthcare-pharmaceuticals/prior-covid-infection-more-protective-than-vaccination-during-delta-surge-us-2022-01-19/ https://www

https://www.reuters.com/business/healthcare-pharmaceuticals/prior-covid-infection-more-protective-than-vaccination-during-delta-surge-us-2022-01-19/ https://www.reuters.com/business/healthcare-pharmaceuticals/... There's a lot of talk of antibodies because researchers studying vaccine effectiveness prior to everyone being exposed need something to measure. It's hard to measure the overall effectiveness of a person's immune response, so they measure antibodies, which are not the whole story. It might not even be the important part. I think this is why GP is derisive of serology. The immune system is quite complicated. Personally I suspect that advising people who had breakthrough infections to keep getting boosters will turn out to be bad advice. We'll see I guess.