Hepatitis can be caused by several viruses. Hepatitis A is caused by the Hepatovirus and spreads through fecal-oral transmission. Hepatitis B and C are caused by different viruses and can spread through blood and bodily fluids. Hepatitis D only infects those also infected with Hepatitis B. Hepatitis E is caused by the Orthohepadnavirus and spreads mainly through contaminated water. Symptoms include fatigue, abdominal pain, dark urine, and jaundice. Treatment involves diagnosis, antiviral drugs, and vaccination to prevent Hepatitis A and B. Prevention methods include proper hand washing, avoiding undercooked food, and not drinking contaminated water.