Hepatitis B is an infection of the liver caused by a virus that's spread through blood and body fluids. It often doesn't cause any obvious symptoms in adults and typically passes in a few months without treatment. But in children, it often persists for years and may eventually cause serious liver damage. Hepatitis B is less common in the UK than other parts of the world, but certain groups are at an increased risk. This includes people originally from high-risk countries, people who inject drugs and people who have unprotected sex with multiple sexual partners. A hepatitis B vaccine is available for people at high risk of...
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