What is "triazavirin"

Triazavirin (TZV) is a broad-spectrum antiviral drug developed in Russia through a joint effort of Ural Federal University, Russian Academy of Sciences, Ural Center for Biopharma Technologies and Medsintez Pharmaceutical. It has an azoloazine base structure, which represents a new structural class of non-nucleoside antiviral drugs. It was originally developed as a potential treatment for pandemic influenza strains such as H5N1, and most of the testing that has been done has focused on its anti-influenza activity. However triazavirin has also been found to have antiviral activity against a number of other viruses including tick-borne encephalitis, and is also being investigated for potential application against Lassa fever and Ebola virus disease.