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(added on 2011/07/15)

Hepatitis B in mainland China 正視中國大陸的乙型肝炎

Data source: Ministry of Health, People's Republic of China
Map created by CUHK SpatioEpi Group

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Hepatitis B poses a major public health threat in China, where an estimated 7% of the population aged 1 - 59 is chronically infected with hepatitis B virus (HBV). Between 2005 - 2009, the reported number of hepatitis B cases per 100000 population has increased by 18% in the country. The map shows the distribution of hepatitis B cases in 2009 and the changes over the preceding five years.

As depicted by graduated colours, north-western China reported the highest number of hepatitis B cases, in contrast with lower numbers in south-western and eastern China. As indicated by coloured arrows, hepatitis B cases clustered in western and southern China while a decrease can be seen in the east and Sichuan. To control HBV infections in China, strengthening the current vaccination programme is paramount, especially in rural areas and western regions. The first official WHO World Hepatitis Day is marked on 28th July 2011 to enhance public awareness and improve understanding of viral hepatitis, of which HBV is a major focus.

Data for the map was obtained from the Ministry of Health of the People's Republic of China.