Part of a health series produced for BBC World.
Hepatitis B is the most serious type of viral hepatitis and a major cause of liver cancer. Every year, 600,000 people die from hepatitis B-related causes.
Kill or Cure goes to Cambodia where 1 in 10 people carry the Hepatitis B virus. Cambodia is the first country in the region to introduce mass vaccination of newborns and infants to try and break the cycle of infection.

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