Hepatitis C is caused by a virus and is most commonly spread through the blood, usually through contaminated needles. Newly infected people usually do not notice any symptoms. It may not be until years, or even decades later, when symptoms appear. These symptoms may be mild or mimic other illnesses, which may lead to misdiagnosis of flu or other common conditions. Many people who are infected with the Hepatitis C virus but who have not been diagnosed transmit the illness to others before they are even aware that they have Hepatitis C
Once infected with the Hepatitis virus, 85% will develop Chronic Hepatitis C. Serious liver complications can occur, notably:
Clinical trials seek to test investigational medications to treat Chronic Hepatitis C.