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. 2021 Nov 18;9(11):1353. doi: 10.3390/vaccines9111353

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Case 2: Autoantibody release after Pfizer-BioNTech BNT162b2 vaccination in a 13-year-old girl with Hashimoto thyroiditis. Compared to healthy controls and the baseline values, we found a uniform increase of functional autoantibodies against G-protein-coupled receptors and antithyroid peroxidase antibodies in a girl with a known autoimmune disease (after the first BNT162b2 vaccination); however, there was a further increase of only the antithyroid peroxidase antibodies after the second vaccination. Anti-AT1R: anti-angiotensin 1 receptor autoantibody; anti-ETAR: anti-endothelin receptor autoantibody; anti-α1 adrenerg: anti-α1 adrenergic receptor autoantibody; anti-α2 adrenerg: anti-α2 adrenergic receptor autoantibody; anti-β1 adrenerg: anti-β1 adrenergic receptor autoantibody; anti-β2 adrenerg: anti-β2 adrenergic receptor autoantibody; anti-MC R1: anti-muscarinic cholinergic receptor-1 autoantibody; anti-MC R2: anti-muscarinic cholinergic receptor-2 autoantibody; anti-MC R3: anti-muscarinic cholinergic receptor-3 autoantibody; anti-MC R4: anti-muscarinic cholinergic receptor-4 autoantibody; anti-MC R5: anti-muscarinic cholinergic receptor-5 autoantibody.