“protection against hospitalization and death persisted at a robust level for 6 months after the second dose. (Funded by Weill Cornell Medicine–Qatar and others.)”
I think that was their point, it’s the time period after 6 months that degradation of the immune system begins to appear.
But it says nothing about the immune system being degradated. The protection against Covid wanes. But people aren’t developing AIDS like the thread title says or seeing their immune systems deteriorating and being incapable of handling any other illness.
The headline is blatantly misleading and doesn’t match the conclusion of the study.
And you should really check that stuff before posting an article like that.