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Immunization Manual For Medical And Nursing Students ''Hepatitis B Disease'', Rose Kamenwa

Paediatrics and Child Health, East Africa

Approximately 350 – 400 million people worldwide are chronically infected with the hepatitis B virus (HBV ), and approximately 1 million die annually of HBV -related disease. The worldwide prevalence of hepatitis B virus ranges from 0.1% to 20%). This wide range is largely due to differences in age at the time of infection. Following acute HBV infection, the risk of developing chronic infection varies inversely with age: 90% for perinatal infection, 25–35% for infection at age 1–5 years and less than 10% for adults. About 45% of the world population live in areas where chronic HBV is highly endemic …