Hepatitis B is the most common serious liver infection in the world. It is caused by the hepatitis B virus (HBV) that attacks the liver. This disease is more infectious than AIDS because it is very easily transmitted by blood, a single virus particle can cause disease. It is transmitted through infected blood and other body fluids like seminal fluid, vaginal secretions, breast milk, tears, saliva and open sores . Once infected with the hepatitis B virus, approximately 10% of the people develop a chronic permanent infection.It is very common in Asia, China, Philippines, China, Africa and the Middle east.The overall incidence of reported hepatitis B is 2 per 10,000 individuals, but the true incidence may be higher, because many cases do not cause symptoms and go undiagnosed and unreported.