Sovaldi-$55 billion headache for states By: CNBC.com News July 17, 2014 at 10:18 AM EDT States may be on the hook for $55 billion to pay for hepatitis C treatments like Sovaldi, which costs $1,000 a day for a 12-week treatment, a new study says. Read More >> Related Stocks: Express Scripts Holding Gilead Sciences Johnson & Johnson UnitedHealth Group