If you got multiple COVID-19 booster shots, something happened to your immune system that your doctor probably never mentioned, and that your post-vaccination blood test almost certainly cannot detect.
A growing body of peer-reviewed research published between 2023 and 2025 documents that repeated mRNA boosting causes a progressive shift in the type of antibody your immune system produces against the virus. This shift is not random noise. It follows a well-understood biological pattern. And it has measurable, functional consequences.
This article explains what that shift is, what it means, who it matters most for, and what should be done about it. No prior immunology background is required.
https://open.substack.com/pub/rwmalonemd/p/what-your-covid-booster-did-to-your