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(added on 2008/11/07)

Hepatitis C on the move 丙型肝炎在遷移

©2007 SpatioEpi.com
Data source: Various Literature
Map created by CUHK SpatioEpi Group

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Hepatitis C is an RNA virus that is commonly spread through needle sharing in heroin users. The virus mutates as it spreads from one place to another. Genotype 1 and 3 are common in South and South East Asia. Genotype 6 is unique as it is found mostly in South East Asia including Hong Kong. The genotypic pattern of hepatitis C somehow reflects the epidemiology of heroin addiction, but there are still many gaps in our knowledge as to why one genotype should predominate in a specific location.

丙型肝炎是由一種RNA病毒感染所致的傳染病,主要在吸食海洛英人群中因共用針具而傳播,情況十分普遍。丙型肝炎病毒在傳播的同時,往往發生基因突變,形成各種基因型。當中的一和三型在亞洲相當流行,而六型則幾乎祇在東南亞傳播,特別是包括了香港。丙型肝炎基因型的分佈反映了注射海洛英的流行情況,不過至今仍未有確實數據解釋何以一些基因型會在某地方較為流行。