One way to discover drugs is by drug repurposing, which is the process of discovering "new" drugs from "old" ones. Instead of starting from scratch (which takes 10+ years), if scientists can find an approved drug that treats a different -- often untreatable -- condition, considerable time and cost can be saved. In this manner, a drug that cures hepatitis C was found be effective against Yellow Fever and Chikungunya. Does this make sense?
antiviral drug discovery
Dr. Josh Bloom on Science 2.0, November 11, 2014 Named after the location of first documented outbreak (Norwalk Ohio in 1968) norovirus, aka the "Stomach Flu," "Winter Vomiting Bug," or the "Cruise Ship Virus" is an evil little demon that spares no one. There are few, if any of us, who haven't experienced its misery; it infects 21 million people annually in the...[Read more].