1. Antiviral is a drug used to prevent or cure a disease caused by a virus
Notes: An Antiviral interferes with the ability of viruses to multiply in number or spread from cell to cell.
2. An antiviral medication destroys or inhibits the reproduction of viruses.
(2006, Vermont Department of Health. Pandemic Influenza Preparedness and Response Plan)
3. A substance or process that destroys or weakens a virus or interferes with its ability to replicate.
(2008, Geary W.Skick. Protecting your business in a pandemic : plans, tools, and advice for maintaining business continuity. ISBN: 978-0-313-34602-6)