<unk>  infection has been found worldwide and currently infects around a sixth of the world's population. High prevalence is observed among subjects with the risk of parenteral exposures, including those with exposure to blood and blood products, those on hemodialysis, and intravenous drug users. Sexual contact and vertical transmission may occur. About 10–25% of hepatitis C-infected patients and 14–36% of drug users who are seropositive for HIV-1 show the evidence of<unk>  infection. It has been classified into seven genotypes and many subtypes with distinct geographical distributions. Genotypes 1 and 2 are prevalent in Northern and Central Africa and in Americas. Genotypes 3 and 4 are commons in Asia. Genotype 5 is present in Central and Southern Africa. Genotype 6 can be encountered in Southeast Asia. Finally, genotype 7 has been reported in China. Infection with multiple genotypes is possible. Genotype 5 appears to be basal in the phylogenetic tree, suggesting an African origin for this virus.
GB virus C
Chinese virus
Hendra virus
ZyCoV-D
Banna virus
Influenza D virus
Sepik virus
Slow virus