What are sub types

I am geno type 4 had hep c since I was 18 years old last biopsy 2008 stage 1 to2 Grade 1 viral load under half million I am 60 years old never been treated My question what are sub types thanks in advance

[Bill1954]

Recent studies have suggested that a person’s HCV subtype is the key-factor that influences their possible response to  combination treatment.

It is very important to find out which genotype you carry.

Most of us learn about Hepatitis C as one disease, however in actuality it's really several different strains of a virus. They are all similar enough to be called hepatitis C virus, yet different enough to be classified into subgroups.

HCV GENOTYPES are broken down into sub-types, some of which include: 1a, 1b, 1c 2a, 2b, 2c 3a, 3b 4a, 4b, 4c, 4d, 4e 5a 6a 7a, 7b 8a, 8b 9a 10a 11a

Genotype Geography Patterns:

It is believed that the hepatitis C virus has evolved over a period of several thousand years. This would explain the current general global patterns of genotypes and subtypes:

1a - mostly found in North & South America; also common in Australia

1b - mostly found in Europe and Asia.

2a - is the most common genotype 2 in Japan and China.

2b - is the most common genotype 2 in the US and Northern Europe.

2c - the most common genotype 2 in Western and Southern Europe.

3a - highly prevalent here in Australia (40% of cases) and South Asia.

4a - highly prevalent in Egypt

4c - highly prevalent in Central Africa

5a - highly prevalent only in South Africa

6a - restricted to Hong Kong, Macau and Vietnam

7a and 7b - common in Thailand

8a, 8b & 9a - prevalent in Vietnam

10a & 11a - found in Indonesia



http://janis7hepc.com/Genotypes.htm