NKG2A and COVID-19: another brick in the wall

Coronavirus disease 2019 (COVID-19) is a viral infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2; formerly designated as 2019-nCoV), a novel betacoronavirus firstly identified during a burst of respiratory illness cases in Wuhan City, Hubei Province, China. 1 Unfortunately, within a few weeks, the SARS-COV2 virus started to spread globally, producing a pandemic of an extremely spreadable and potentially fatal disease, becoming a cause of great concern for global public health. 1