The World Health Organization WHO estimates that at least 8 million people are infected, from the United States of America to Argentina and Chile, mainly in 21 Latin American countries, in the zone traditionally considered endemic.
La Organización Mundial de la Salud OMS, estima que existen – al menos – 8 millones de personas infectadas, principalmente en los 21 países de Latinoamérica incluidos en la zona considerada tradicionalmente endémica.