C肝抗體陰性是什麼意思

"Hepatitis C antibody negative" means that a person has not been exposed to the hepatitis C virus (HCV), or if they have been exposed, their body has cleared the virus and they no longer have antibodies against it. Antibodies are proteins produced by the immune system in response to a foreign invader, such as a virus.

If a person has been infected with HCV, their body will produce antibodies to try to fight off the infection. These antibodies can be detected with a blood test, known as an anti-HCV antibody test. If the test is positive, it means that the person has been exposed to HCV at some point in their life. However, a positive antibody test does not necessarily mean that a person is currently infected, as they may have cleared the virus on their own or with treatment.

A negative antibody test, on the other hand, means that the person has not been exposed to HCV, or if they have been exposed, their body has cleared the virus and they no longer have antibodies against it. It is important to note that a negative antibody test does not provide absolute protection against HCV, as it is possible for a person to become infected with the virus after the test is done.