Using logistic regression, we identified eight autoantibodies associated with 11 other reported moderate or severe symptoms post-COVID-19, with the association between anti-PCYT1B (choline-phosphate cytidylyltransferase B) IgG and impaired hearing being the strongest (OR (95% CI) = 41 (8.3–220), q = 0.002; Fig. 3d). Here, PCYT1B is linked to COVID-19.