In the reassessment of 122 non-critically ill patients after a median interval of 90 days from COVID-19, Lui et al. (2021) [110] observed that anti-TPO titers and anti-TG titers increased significantly and four patients became positive for anti-TPO, evidencing the utility of thyroid function surveillance post COVID-19 and longer follow-up to monitor potential incidents of thyroid dysfunction among COVID-19 survivors. The gene discussed is TPO; the disease is COVID-19.