Blood transfusion and Hepatitis B part -II
The studies observed that more than 300 million people all over the world are infected by hepatitis B virus. This virus belongs to Hepadnaviridae family, a non-cytopathic hepatotropic DNA virus. Though there is a prophylactic vaccine deemed to be effective still the high prevalence of this virus is found in continents like Africa and Asia (Lok,. & McMahon, 2001). Hepatitis B virus induces the liver ailments, the degree of which varies from person to person ((Ganem & Prince, 2004). The effects of infections by hepatitis B virus are controlled efficiently and cleared from the blood without any symptom or clinical evidence of liver disease by some persons. They may have inflammation severely in the liver i.e. acute hepatitis but after being resolved leave no long term squeal. There are others who cannot clear the virus and likely to develop a chronic infection but most of them may remain without any symptom and any acute liver disease, around 10 to 30 per cent of them con...