> Antiviral drugs for hepatitis C are very effective, but they come at a steep cost. Just one Sovaldi pill costs $1,000. A full 12-week course of treatment with this drug costs $84,000.

It's worth noting that, in the US, almost nobody is actually paying those prices. Most insurance plans these days cover HCV treatment, and even insurance companies aren't paying those sticker prices to the pharmaceutical companies when they cover these drugs.