Purpose: To describe a case report of a patient with symptoms associated with metabolic alterations 1 month after having COVID-19.
Methods: Laboratory tests, clinical evaluations, and body composition assessments were performed by specialists.
Findings: The patient presented excessive sweating, hot flashes, dizziness, blurred vision, and seizure. Laboratory tests indicated low glucose levels after convulsions (50, 42.7, and 55 mg/dL), high insulin levels (basal, 638 µIU/mL; 2-hour, >1000 µU/mL), and positivity for anti-insulin antibodies. The patient was diagnosed with insulin autoimmune syndrome. Treatment with azathioprine and nutritional recommendations improved remission.
Implications: SARS-CoV-2 infection or vaccination might induce insulin tolerance failure.
Keywords: Autoimmunity; Azathioprine; Insulin; Long COVID-19; SARS-CoV-2.
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