丙型肝炎是一种传染性疾病影响到肝脏 ，引起的丙型肝炎病毒 （丙肝） 。 [ 1 ]的感染通常是无症状的 ，但一旦建立，慢性感染可进展肝脏结疤（ 纤维化 ） ，以及先进的疤痕（ 肝硬化 ）通常是明显的，经过多年。 In some cases, those with cirrhosis will go on to develop liver failure or other complications of cirrhosis, including liver cancer . [ 1 ]在某些情况下，那些有肝硬化将继续发展肝衰竭或其他并发症，肝硬化，其中包括肝癌 。 [ 1 ]

The hepatitis C virus (HCV) is spread by blood-to-blood contact.丙型肝炎病毒（ HCV ）是由血液传播的血液接触。 New evidence shows it may be able to spread through bodily fluids.新的证据表明它可以通过体液传播。 Most people have few, if any symptoms after the initial infection, yet the virus persists in the liver in about 85% of those infected.大多数人都很少，如果任何症状，在最初感染，但病毒存在于肝脏中约有85 ％的感染者。 Persistent infection can be treated with medication , peginterferon and ribavirin being the standard-of-care therapy.持续感染是可以治疗的药物 ，聚乙二醇化干扰素和利巴韦林是标准的保健治疗。 Only 51% are cured overall.只有51 ％的治愈整体。 Those who develop cirrhosis or liver cancer may require a liver transplant , and the virus universally recurs after transplantation.这些谁开发肝硬化或肝癌可能需要进行肝脏移植 ，而病毒普遍移植后复发。

An estimated 270-300 million people worldwide are infected with hepatitis C. Hepatitis C is a strictly human disease.估计有270-300万人感染了丙型肝炎丙型肝炎是一种严格的人类疾病。 It cannot be contracted from or given to any animal.它不能从合同或给予任何动物。 Chimpanzees are able to carry the disease for lab work, but the animals do not get sick.黑猩猩能够携带疾病的实验室工作，但动物没有生病。 The inability to perform animal testing has severely limited attempts to study and cure the disease in a nonhuman in vivo environment.无法履行动物试验已极为有限的尝试，研究和治疗这一疾病在非人的体内环境。 No vaccine against hepatitis C is available.无C型肝炎疫苗可用。 The existence of hepatitis C (originally "non-A non-B hepatitis") was postulated in the 1970s and proved conclusively in 1989.的存在， C型肝炎（原“非甲非乙型肝炎” ）是假定在1970年代和证明最后于1989年。 It is one of five known hepatitis viruses: A , B , C, D , and E .这是5个已知肝炎病毒： 甲 ， 乙 ，丙， D ，并é 。