IL6 and COVID-19: The retrieving of data on IL-6 plasmatic levels from our previous published study [12] showed that among 95 patients with active COVID-19, the levels of plasmatic IL-6 were higher among IL6 CC genotype carriers (7 patients; average 40.11 pg/mL) than among GG carriers (54 patients; average 31.2 pg/mL), making this difference statistically significant (Mann–Whitney test; Z(U) = −1.98; p = 0.04).