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. 2022 Sep 15;40(42):6114–6124. doi: 10.1016/j.vaccine.2022.08.024

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Fig. 4 — Levels of IgM and IgE antibodies against PEG and specificity of anti-PEG ELISA. Sera from BNT162b2 (left column) or mRNA-1273 (right column) vaccinees collected at baseline (n = 10 for BNT162b2 and n = 10 for mRNA-1273 groups), 18.9 days (arithmetic mean ± 2.4 SD) after the prime (n = 10 for BNT162b2 and n = 10 for mRNA-1273 groups) and 19.3 days (arithmetic mean ± 3.9 SD) after the boost (n = 10 for BNT162b2 and n = 10 for mRNA-1273 groups), were tested for IgM (A and B) or IgE (C and D) antibodies against PEGylated BSA 20 kDa or against bovine serum albumin (BSA, E and F).