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Comment by pengaru | Hacker News Reader

> The biggest problem with your understanding is that catching covid builds up immunity. In fact it appears the opposite is true: covid is causing immuno-deficiency. Each infection gets worse than the last.

Some serious credible citations needed for that apparent hogwash.

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can't be true imo that would mean the virus would circulate more and more, which isn't the case. The numbers are going down in almost all countries due to build up of immunity, because people got it multiple times. In most countries the virus became endemic and the waves are getting smaller

https://pubmed.ncbi.nlm.nih.gov/35027728/

https://pubmed.ncbi.nlm.nih.gov/33884644/

here are a couple studies showing that covid can cause immune system deregulation effects.

there are plenty more if you go and look.

even mild cases have been shown to cause last impact to the immune system.

There are several preprints that speculate this immune system deregulation is partially responsible for the abrupt spike in rsv and flu happening.

Those links you posted are about acute cases, which probably means those patients had other health issues (being overweight, diabetes etc). It's not a convincing argument that there's some kind of vast immune depletion going on in the general populous as a result of covid.

I think it is well established that repeat COVID infections have an increasingly severe impact on your body.

It is also true that COVID can weaken your general immune system.

But that doesn’t mean that getting COVID won’t increase your immunity against a future COVID infection, temporarily at least, just the way the effectiveness of the vaccine is temporary.

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