coronavirus spike glycoprotein; SARS-CoV-2 vaccine; coronavirus disease 2019; editorial; health care policy; health service; human; Human immunodeficiency virus; Influenza virus; lockdown; morbidity; mortality; myocarditis; pandemic; patient compliance; risk aversion; SARS-CoV-2 (isolate hCoV-19/USA/CA-CDC-5574/2020 (B.1.1.7)); SARS-CoV-2 Omicron; symptomatology; thrombosis; vaccination; virus transmission