Hepatitis B infection is caused by the hepatitis B virus (HBV), an enveloped DNA virus that infects the liver, causing hepatocellular necrosis and inflammation. The findings from a study carried out in the Bylakuppe Tibetan settlement in South India jointly by DOHe-CTA and Johns Hopkins University (JHU) in 2014 suggest that Tibetans living in India has about 9 % prevalence of chronic Hepatitis B infection.
Health Department has ongoing routine “Universal Immunization Program for Under-5” which includes Hepatitis B vaccination. One time “School Hepatitis B Vaccination Project” began in 2014 as a catch-up program with screening of about 19000 students, youths and people in reproductive age group for hepatitis B infection and protecting them with three doses of vaccination.
Screening for Hepatitis B infection results in identification of people with chronic hepatitis B infection who are undiagnosed earlier. With the funding support from the US PRM, Department of Health, CTA has started Hepatitis B screening, vaccination and Treatment support for Tibetans in India. In 2019, a people of about 11000 has been screened for Hepatitis B and C.