As the first large-scale trade and information network was established in nineteenth century Europe, the marvellous expression « official infection map » was used for route planning. Today, when we have the dynamic metaphor « information super highway », it is disconcerting that in former times the circulation of goods and information was linguistically close to epidemics. However, every kind of exchange does actually now have epidemic characteristics. In English and French this meaning has been preserved until today in the words « dissemination » and « dissémination ». The meaning of the spreading of seeds is still in the words.