From a study that confirms what we already know (suspected), the more jabs the worse the immune system response.

https://www.americanthinker.com/articles/2023/01/its_time_to_ask_whether_repeated_mrna_vaccine_shots_weaken_the_immune_response_to_covid19.html

Basically the immune system starts treating a viral infection like an allergy response.

The key word "immunoglobulin".

"To put it simply, this antibody class shift is bizarre, unprecedented, and a very troubling sign that vaccinated people — especially repeatedly dosed people — are somehow losing their IgG1 and especially IgG3 response in favor of IgG4.  It’s not just the reduction of the two effective neutralizing antibody types, either.  IgG4, since it is designed for allergies, doesn’t remove the foreign proteins so much as teach the body to “tolerate” or “ignore” them.

There’s a good reason for tolerance: allergens don’t replicate like viruses.  Allergens are a totally different kind of threat.  With allergens, the body doesn’t need to go crazy fighting allergens; it can take a slower, more measured response.

Specifically, whereas IgG1 and IgG3 types are “pro-inflammatory,” which means they trigger the body’s immune-system high alert system, the IgG4 type is “anti-inflammatory,” which means it tells the immune system to stand down.  Which is the opposite of what you really want, when you’re fighting an infection."