Hepatitis B Virus Zn mANN
Hepatitis B Virus
Background a Hepatitis B virus(HBV) prevalence 8%0-High ● Infected:2 billion 2-7%0-Intermediater ● Chronically infected < 2%-Low 350-400 million
> 8% - High 2-7% - Intermediate < 2% - Low Hepatitis B virus (HBV）prevalence Background Infected: 2 billion Chronically infected: 350-400 million
Outcome of Hepatitis B and c virus Infection HBV HCV Horizontal transmission vertical transmission Horizontal transmission (adults) 95% 5% 95-100% 85-100% Clearance Chronic infection No protective 70% Antibodies Protective Chronic hepatitis antibodies Liver cirrhosis Hepatocellular carcinoma
Outcome of Hepatitis B and C Virus Infection HBV HCV Horizontal transmission (adults) Vertical transmission Clearance Chronic infection Protective antibodies Chronic hepatitis Liver cirrhosis Hepatocellular carcinoma Horizontal transmission No protective Antibodies 95% 5% 95-100% 85-100% 70%
Hepatitis b In the World 2 billion people have been infected (1 out of 3 people 400 million people are chronically intected 10-30 million will become infected each year An estimated 1 million people die each year from hepatitis B and its complications Approximately 2 people die each minute from hepatitis B
Hepatitis B In the World • 2 billion people have been infected (1 out of 3 people). • 400 million people are chronically infected. • 10-30 million will become infected each year. • An estimated 1 million people die each year from hepatitis B and its complications. • Approximately 2 people die each minute from hepatitis B
Hepatitis B in China °1.3 billion people the world's largest population of hepatitis B patients, with nearly half a million people dieing of the liver disease every year 120 million Chinese have tested positive for hepatitis B, which has become a severe public health problem in the country
Hepatitis B in China • 1.3 billion people • the world's largest population of hepatitis B patients, with nearly half a million people dieing of the liver disease every year • 120 million Chinese have tested positive for hepatitis B, which has become a severe public health problem in the country