The Sentinelles network is a research and vigilance platform in general medicine at the Unité Mixte de Recherche en Santé 707 (Mixed Health Research Unit 707) (UMR S 707, Inserm-UPMC). At present it is composed of 1288 general practitioners, and 333 of them help in the continual surveillance of epidemics.
Please see the Sentiweb site.