Comment: At present, 6 HCV genotypes and 50 subtypes have been described for this RNA virus. Genotypes 1, 2, and 3 are found worldwide. Genotype 4 is principally in Egypt and Zaire, genotype 5 in South Africa, and genotype 6 in Asia. Variations in the six major types are designated with letters a, b, c, etc
Sample: serum