Dear All
Thank you for commenting on the HCV geno-/subtype draft table for HICDEP 1.60
Coding Table for HCV geno- and subtypes:
From http://www.hepatitis-cent...otype/explained.html
Classifications
The most commonly used classification of Hepatitis C virus has HCV divided into the following genotypes (main types): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11. As we've highlighted, HCV genotypes can be 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 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 U.S. 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
HICDEP Conventions
Indicate only the genotype (numbers from 1-11) if the subtype is unknown.
Combinations of geno- and subtypes: Use the "/" to separate (e.g. "4c/4d" or "1a/1b")