The viruses that cause liver damage can be transmitted through blood or semen, contaminated food or water, or close contact with a person who is infected.
The Hepatitis B virus causes Hepatitis B infection which affects the liver and can lead to acute and chronic disease both.
The concentration of the virus increases in the blood.
It is transmitted via sexual contact, though, like HIV, it can also be transmitted through blood, tattooing with an infected needle, ear, and nose piercing with infected instruments, intravenous drug abuse with infected needles, as well as sharing of razors with an infected individual.