A rare case of transformation of autoimmune thyroiditis into Grave’s disease after COVID-19 disease

Autoimmune Thyroiditis (AIT) and Graves' disease are autoimmune diseases with the opposite state of thyroid function: hypothyroidism and thyrotoxicosis. Typically, thyrotoxicosis can progress to thyroiditis and eventually hypothyroidism. The transformation of autoimmune thyroiditis into Graves' disease is a very rare event. SARS-CoV-2 viral infection shares autoimmune mechanisms with common diseases of the thyroid gland and may be the cause of their diseases. We have described a case of Graves' disease after suffering Covid-19 in a patient with autoimmune thyroiditis and hypothyroidism.