Gilead (NASDAQ:GILD) just released data for a new hepatitis C combination therapy, and the results are staggering: a 100% cure rate! The news sent the stock soaring more than 13% on Monday. In this video, Motley Fool health care analyst Brenton Flynn breaks down the market potential for Gilead's new therapy and talks about another company with similarly excellent results that will want a share of that market for itself.