Medicine emerges as an instinctive act in the daily struggle that man waged against the physical nature and animal; but since its inception was a social Act: anyone and everyone were their creators; over the centuries the history recognized three milestones: the first of them is Aesculapius (or Asclepius,) for the Romans half half legend * truth represents the Magica-religiosa interpretation – Ritual, the second is Hippocrates, 460 years BC, who managed to gather all medical practice from antiquity and is considered father of the rational and empirical medicine; the third milestone is Clacudio Galen (129 years DC) who makes scientific synopsis of all the Greco-Roman medicine. In Peru, the Civico-escolar calendar recalls on October 5 as the day of the heroic action of Daniel Alcides Carrion Garcia and more than 30 thousand doctors celebrate on this day the day of Peruvian medicine. Historical background from pre-Columbian believes has existed in plants of the Peru andes a deadly disease causing fever and pallor and affected the capacheros (miners) that extracting minerals with which their peoples Siam to the incas. So Vadilla Gago described in Chronicles of 1630 published at the beginning of the last century, however the first epidemic that remembered Dr. Odriozola dates back to 1865-1870, when he was working on the railway in the train of the Center (which went from Lima to San Mateo) is the one who makes the first academic publication of this disease and is known since then as la Oroya fever. In the Government of Mariano I. Prado (1876-1879) when great prosperity (saltpeter, guano, sugar, minerals, etc.) lived the English who already exploited the mine open pit of Cerro de Pasco (polymetallic mine) decide built a railroad (a train with many freight wagons) to replace the donkeys and you until in transporting minerals from the mine to Callao. This was an ambitious work: had to drill 68 tunnels and build 60 bridges, one of which, the Galera tunnel, it was to 4781.70 msn (and it is up to the) currently the highest in the world). .