Hepatitis B is a viral infection that attacks the liver and can cause both acute and chronic diseases. The virus is transmitted through contact with the blood or other body fluids of an infected person. Research in the area of hepatitis B focuses on developing vaccines to prevent infection, improving diagnostic tests for early detection, and developing treatments to manage and cure chronic infections. Additionally, researchers are studying the epidemiology of the disease, the impact of hepatitis B on global health, and strategies for prevention and control. Overall, the goal of hepatitis B research is to reduce the burden of this disease on individuals and healthcare systems worldwide.