Convalescent plasma appears efficacious and safe in COVID-19.

A cluster of pneumonia cases of unknown etiology associated with pyrexia and acute respiratory distress was identified in Southern China. Links between the previous severe acute respiratory syndrome (SARS) cases and the region's seafood market were noted with the possibility of a new zoonosis and SARS-CoV-2 was identified as the responsible agent. Currently, there are no effective prophylactic or therapeutic options to deal with coronavirus disease-19 (COVID-19) or any other human coronavirus (HCoV) infections.