IgG4 serum levels are not elevated in cases of Post-COVID syndrome
J. Abel, A. J. Walter, V. Glueck, C. L. Magnus, T. Glueck, P. Schuster, S. Blaas, I. Montanari, M. Koller, A. Mohr, T. Hinterberger, B. Salzberger, K. Renner, M. Mack, R. Bals, , D. Peterhoff
The paper compares IgG subtypes in Post-COVID patients and controls, finding no elevation in IgG4 but reduced IgG2, suggesting potential role of IgG2 in Post-COVID syndrome.
bioRxiv · Mar 1, 2023 · PreprintImmunology