Betacoronavirus/pathogenicity; Clinical Decision-Making; Coronavirus Infections/drug therapy; Coronavirus Infections/immunology; Interleukin-6/antagonists & inhibitors; Pneumonia, Viral/drug therapy; Pneumonia, Viral/immunology; Steroids/adverse effects; Steroids/therapeutic use; Uncertainty; Antibodies, Monoclonal, Humanized/pharmacology; Antibodies, Monoclonal, Humanized/therapeutic use; Betacoronavirus/drug effects; Betacoronavirus/immunology; COVID-19; Coronavirus Infections/mortality; Coronavirus Infections/pathology; Humans; Immunosuppressive Agents/pharmacology; Immunosuppressive Agents/therapeutic use; Interleukin-6/immunology; Macrophages/drug effects; Macrophages/immunology; Pandemics; Physicians/psychology; Pneumonia, Viral/mortality; Pneumonia, Viral/pathology; Randomized Controlled Trials as Topic; SARS-CoV-2; Steroids/administration & dosage; Steroids/pharmacology; T-Lymphocytes/drug effects; T-Lymphocytes/immunology

Diseases; Epidemiology; SARS-CoV-2