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What is Hepatitis B?
As with hepatitis A, this is a virus that causes inflammation of the liver. Infection occurs through blood contact or unprotected sexual activity. Around 400 million people are infected across the world. Many sufferers develop cancer of the liver in due course. Vaccination based on a schedule offers protection for ten years. Travellers are increasingly advised to have the hepatitis B vaccination. There is also a combination vaccine against hepatitis A and B.