In the group of short viral shedders, the three patients with the slightly higher ACE2 mRNA expression were male patients, a 57-years-old patient with hypertension (196/85) and hyperkalemia (4.65 mmol/L) a 66-years-old patient also with above-normal blood pressure (159/95) and a normal kalemia of 3.97 mmol/L, both patients were on anti-HT treatment, - and a 35-year-old male patient (kalemia: 3.91 mmol/L), treated for allergy and inflammatory bronchial obstruction. The gene discussed is ACE2; the disease is hematocrit.