Fig. 1
From: Impact of the national hepatitis B immunization program in China: a modeling study
Estimated burden of chronic hepatitis B infection in China. A The number of chronic HBV infections and chronic hepatitis B (CHB) cases; B The estimated proportion of mother-to-child transmission account for the total number of chronic HBV infections; C the number of chronic HBV infections that were less than 5 years old. Note: chronic HBV infection is defined as a dynamic process with HBsAg and/or HBV DNA positivity for more than 6 months, reflecting the interaction between HBV replication and the host immune response; while CHB is defined as a chronic inflammatory disease of the liver caused by persistent HBV infection. HBV Hepatitis B virus