Hepatitis B is a contagious liver infection caused by hepatitis B virus. There is Hepatitis B virus in the blood and body fluids of infected persons. The disease can be transm … itted through blood, semen, vaginal fluids, and many other body fluids.epatitis B can be treated. Other liver infections exist. Hepatitis A generally results when an infected person prepares your food. Hepatitis C is blood borne. Anything one person does that gets body fluids from one person into another spreads the virus. Hepatitis D, E, F, G, H, I, J, K, L, and M also exist.