Annual Reports in Medicinal Chemistry, Volume 57 in this long-running series, highlights new advances in the field with this new volume presenting interesting chapters on the Mechanism of action of the broadly acting antiviral drug remdesivir, Improving properties of the nucleobase analogue T-706 as a potential anti-SARS-CoV-2 and anti-influenza compound, Antivirals for RNA virus infections Anno 2020-2021, Broad spectrum antiviral fleximer nucleosides, SARS-CoV-2 main protease inhibitors, The search for antivirals to treat alphavirus infections, Inhibitors of Ebola Virus targeting Innate immune evasion, Uracil derivatives as non-nucleoside inhibitors of viral infections, and more.