Some 'transmigrant-migrant nomad'? workers (e.g. Moroccans) use the mobile phone and Internet for transactions designed to set up a healthcare strategy involving both 'travelling'? doctors and access to medicines. This type of network, that technology has configured, not invented, currently concerns a growing number of people involved in a parallel economy. The author sees this economy as increasingly fragmented and democratic. He identifies six geographic itineraries, starting from the former Asian republics of the USSR, the Caucasus, Georgia, Afghanistan and South-East Asia.