You should quote me where I "made the claim." It will be funny to see you realize you were foiled by your less than Grade 4 reading level again.
I said they DON'T KNOW. But studies suggest it might be the case, like this one:
"...some people with long COVID may actually have underactive immune systems after recovering from COVID-19..."
https://www.uclahealth.org/news/some-cases-long-covid-19-may-be-caused-abnormally-suppressed#:~:text=This%20leads%20to%20the%20new,other%20immune%20receptors%20or%20functions.%E2%80%9D
Now your turn to cite something that definitively contradicts that.
Maybe double down on the poor reading comprehension to save face. That's always a good strategy. 🤣
Long covid is typically 2-6 weeks. You consider that long term? Regardless, your study says nothing of children. So once again, stop spreading disinformation. Btw, you know what boosts immune systems? Exercise, zinc, vitamin C and vitamin D. 😂
Not rocket science.