The Hepatitis B virus has an incubation period between 45 and 160 days (on average about 100 days). Symptoms usually occur in the first 30 to 180 days after coming into contact with the Hepatitis B virus, but it must be noted that half of those infected with the virus will not show any signs of infection at all. Acute Hepatitis B bolsters an onset of symptoms, but things are different when it comes to the chronic manifestation of the infection, which most often is asymptomatic. People suffering from acute Hepatitis B symptoms may experience “flu”-like symptoms marked by nausea, anorexia, malaise and physical fatigue, pain near the liver and jaundice. Symptoms of acute hepatitis last on average between 1-3 months. During this time, the infected person is highly contagious. The virus is very resistant in normal environments, although it is considered that hot water used in the washing machine is normally able to kill the virus on clothing, and also dishwashing detergent and warm water will remove the ones from the pans. In the acute phase, Hepatitis B produces symptoms ranging in severity from a single, mostly asymptomatic event to fatal events. Statistics suggest that more than one third of those infected with the virus show no symptoms, this infection they believed to be “quiet” form of the disease. Another third of those infected with the Hepatitis B virus show symptoms similar to those caused by the flu: physical weakness, fever, pain, headaches, loss of appetite, diarrhea, jaundice, nausea and vomiting. A third of those infected will present more severe symptoms that manifest themselves over longer periods of time. In addition to symptoms similar to those caused by influenza, other symptoms can occur, such as: severe abdominal pain and a more severe form of jaundice. Jaundice occurs as a consequence of the fact that the liver is unable to remove bilirubin (a pigment in parameters higher than normal, causing yellowing of the skin and eyes) in the blood.