On July 28, World Hepatitis Day will mark a milestone for those who have rare genotypes of heptatitis C. Epclusa, Gilead’s one-pill combination of sofosbuvir and velpatasvir, has been shown to cure genotypes 1 through 6.

Previously, those with genotypes 4 – 6 could be cured only with interferon. The drug often caused extreme flu-like symptoms as well as depression for close to a year. A large portion of patients abandoned treatment before they were cured.

Twelve weeks of Epclusa alone has proven 98 percent effective for those with almost all stages of liver damage. The drug taken with ribavirin has been shown to cure 94 percent of patients who have decompensated cirrhosis.

The cost of Epclusa is $75,000 for 12 weeks. That’s less than other direct-acting antiviral treatments, except for Merck’s Zepatier , priced at $54,000. Still, that’s about the same as the median annual household income  in the U.S. ($53,657 according to the 2014 Census). That’s a big price to pay, but at least now there’s hope for everyone.