Teva, which was ordered to pay $365 million, said in a statement that the company clearly labeled the vials as single use and that aseptic procedures should be used at all times. The company believes there is enough evidence to warrant an appeal of the court's decision.
Baxter, which was ordered to pay $144 million, said it would also submit an appeal.
Mr. Chanin's case is the first of many to reach trial after a 2006 hepatitis C outbreak at Las Vegas endoscopy clinics. The $500 million award follows more than $5 million already awarded to Mr. Chanin and his wife by the same jury, according to the report.
Read the New York Times' report about the Las Vegas hepatitis C trial.