Leow et al studied SARS-CoV survivors for hormonal derangements 3 months after recovery and noted that 6.7% of the patients had developed biochemical hypothyroidism.11 The majority of these patients (75%) had a central aetiology and only 25% developed primary hypothyroidism with positive antibodies and continued to receive thyroid hormone replacement at the end of the study. Here, TG is linked to hypothyroidism.