Coronavirus Disease 2019: Virology and Drug Targets.

The Coronavirus Disease 2019, a pandemic caused by novel Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), is seriously affecting global health and the economy. As the vaccine development takes time, the current research is focused on repurposing FDA approved drugs against the viral target proteins. This review discusses the current understanding of SARSCoV- 2 virology, its target structural proteins (S-glycoprotein), non-structural proteins (3-chymotrypsin- like protease, papain-like protease, RNA-dependent RNA polymerase, and helicase) and accessory proteins, drug discovery strategies (drug repurposing, artificial intelligence, and high- -throughput screening), and the current status of antiviral drug development.