Effects of COVID-19 Infection on Beta-cell Function in Euglycemic Patients

"All participants will be subjected to the collection of glycemic data through continuous professional retrospective monitoring of blood glucose for seven days, positioned on the day the test will be performed. During the entire recording period, parameters such as mean glucose, estimated glycosylated hemoglobin, peak glucose and nadir, blood sugar levels above the limit of 140 mg / dL, average glucose values at 60 and 120 minutes after meals, standard deviation and variability coefficient.~The evaluation of insulin secretion will be evaluated by performing the stimulus test with arginine infusion according to validated protocols."