Broken Immune Response After mRNA Injection? Surprising Result Around IgG4 Antibodies After Booster February 1, 2023 by mosesman See : Class switch toward noninflammatory, spike-specific IgG4 antibodies after repeated SARS-CoV-2 mRNA vaccination IgG4-related disease (IgG4RD) means FIBROSIS and organ destruction – That leads to death, eventually… end