The five viruses that cause infections of the liver are responsible for a widely prevalent and growing disease burden. No country,rich or poor, is spared. These viruses are important as they cause infectious diseases in their own right. Hepatitis A and E viruses are major foodborne and waterborne infections, which cause millions of cases of acute illness every year, with several months sometimes needed for full recovery. Informe OMS hepatitis virales 2013 La información sobre la situación en España la podéis leer en la página 137.