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Six major strains (genotypes) of the hepatitis C virus (HCV) cause infection. You may be infected with more than one genotype at a time.
Genotype testing is done with a blood test.
Although genotype tests are not used to diagnose HCV infection, they may be done before treatment begins. Knowing the genotype may help a doctor choose the best treatment plan. You should know your genotype before treatment starts.
Antiviral medicines are more likely to work for people who have genotype 2 or 3.
If blood tests show that you have responded to antiviral therapy (the virus is not detected in your blood) after 6 months, treatment may be:
The genotype of HCV does not appear to have any effect on the severity of HCV infection or to affect your risk of developing cancer of the liver (hepatocellular carcinoma).
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||W. Thomas London, MD - Hepatology|
|Last Revised||July 6, 2011|
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