De nombreux facteurs d'hA(c)tA(c)rogA(c)nA(c)itA(c) influent sur la dynamique globale des systA]mes A(c)pidA(c)miologiques (tranches d'A ge, structuration spatiale, etc). Ainsi, le concept de systA]me multi-patch offre un cadre appropriA(c) pour l'A(c)tude de l'influence spatiale dans la transmission de certaines maladies infectieuses. Nous nous intA(c)ressons dans cette thA]se A l'hA(c)tA(c)rogA(c)nA(c)itA(c) spatiale. Dans le cas de maladies A transmission directe, nous considA(c)rons un systA]me A(c)pidA(c)miologique multi-patch SIRS avec migration. Nous utilisons les mA(c)thodes...

This book constitutes the thoroughly refereed post-conference proceedings of the 4th International ICST Conference on e-Infrastructure and e-Services for Developing Countries, AFRICOMM 2012, held in Yaounde, Cameroon, in November 2012. The 24 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers cover a wide range of topics in the field of information and communication infrastructures and are grouped in topical sections on: e-Infrastructure, e-Services, e-Society, e-Health, and e-Security.