Epidemiological Study in Children and Adolescents With Chronic Hepatitis B

Inclusion Criteria

• •Male or female, 2 to less than 18 years of age.
• •Documented chronic hepatitis B defined by all of the following:
• •* Clinical history compatible with chronic hepatitis B,Detectable serum HBsAg at the time of the study and at least one other documentation of HBsAg positive at least 6 months prior to inclusion HBeAg-positive or HBeAg-negative Serum ALT of all levels subject or subject's parent or legal guardian must be willing and able to provide written informed consent for participation in the study.