“…In the last 3 years, he was treated with ozone therapy (phthalate-free plastic bag at a concentration increased until 40 µg/mL with a volume of blood of 180 mL each time), with a frequency of once one/two weeks. He demonstrated that the pre-conditioning activity of the ozone supplementation [ 88 ] was enough for him to manage the SARS-CoV2 infection very well that affected him at the end of 2020, even in the form of a mild-severe form of the disease, with oxygen saturation less than 90%, high fever, diarrhea for some days, cough, dyspnoea, and CT signs of pulmonary insufficiency for COVID-19. Despite all these signs and symptoms, he succeeded in healing from COVID-19 without the use of any medicaments (no corticosteroids, no heparin, no oxygen supplementation) except for ozone therapy once a day for three consecutive days, repeated for two weeks at 15–20 µg/mL concentrations.…”