SARS-CoV-2(8) COVID-19(7) facilitate(6) Infection(5) increase in(5) Patient(4) Inflammatory cytokine(4) dispersal(4) independent risk factor(4) Prognosis(4) suppress(4) serum Cu levels(4) serum(4) prognostic(4) regulate(4) worse prognosis(4) Zinc(4) correlated(4) Can(4) outcome(4) Control(4) COVID-19 patients(4) death rate(4) while(4) exhibit(4) the SARS-CoV-2(4) iron(4) viral replication(4) copper(4) viral genome(4)