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DY: Fachverband Dynamik und Statistische Physik

DY 20: Focus Session: Complex Contagion Phenmomena (joint session SOE/ DY/ BP)

DY 20.2: Vortrag

Dienstag, 17. März 2015, 10:45–11:00, MA 001

Cooperative SIS epidemics can lead to abrupt outbreaks — •Fakhteh Ghanbarnejad¹, Li Chen², Weiran Cai³, and Peter Grassberger⁴ — ¹Max Planck Institute for the Physics of Complex Systems, Dresden, Germany — ²Robert Koch- Institute, 13353 Berlin, Germany — ³TU Dresden, Germany — ⁴JSC, FZ Jülich, D-52425 Jülich, Germany

In this paper, we study spreading of two cooperative SIS epidemics in mean field approximations and also within an agent based framework. Therefore we investigate dynamics on different topologies like Erdos-Renyi networks and regular lattices. We show that cooperativity of two diseases can lead to strongly first order outbreaks, while the dynamics still might present some scaling laws typical for second order phase transitions. We argue how topological network features might be related to this interesting hybrid behaviors.