As far as viruses go, hepatitis C is among the sneakiest. Once it's in your blood, it travels to your liver, where it may settle in for a silent, long-term stay. This can lead to cancer or cause the organ to fail if you don't treat it. In fact, hepatitis C is the top reason for liver transplants in the U.S.
If you think you’ve been exposed, here are five reasons to get tested right away: