Hepatitis A is a viral disease that affects the liver. Feces transmit hepatitis A, HAV, and the virus is frequently transmitted by contaminated food or water. Transmission is then called fecal-oral. Hepatitis A is usually acute hepatitis that may go unnoticed. In its typical form, the symptoms are fatigue, fever, muscle or joint pain, headache, nausea, diarrhea, and jaundice appears, among others. A blood test searching for specific antibodies enables the confirmation of the diagnosis. Hepatitis A usually resolves itself quickly. Personal hygiene and possibly vaccination in some cases help to prevent it.