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DY: Fachverband Dynamik und Statistische Physik

DY 76: Complex Contagion Phenomena II (Focus Session, joint SOE/DY/BP/SNPD) (joint session SOE/DY/BP)

DY 76.4: Vortrag

Freitag, 16. März 2018, 10:30–10:45, MA 001

Spreading of multiple pathogens and their evolutionary stable strategies — •Kai Seegers¹, Fakhteh Ghanbarnejad¹, Alessio Cardillo², and Philipp Hövel¹ — ¹Institut für Theoretische Physik, TU Berlin — ²Institut Catalá de Paleoecologia Humana i Evolució Social (IPHES)

Different pathogens usually spread simultaneously in a host population and thus often influence each other. They can either be competitive, e.g. due to cross immunity, or cooperative, e.g. by suppressing the immune system of the host. The latter can lead to unexpectedly large outbreaks [EPL 104, 50001 (2013),Nature Physics 11, 936-940 (2015)] as it has been seen in the Spanish Flu pandemic in the early 20th century and it has been recently on serious warning alarm for co-infection of HIV and tuberculosis or hepatitis, for instance. However cooperation might not always be the best strategy for pathogens to survive, due to death of the host population or enforced countermeasures. Therefore we combine in a novel approach spreading dynamics of different strains of multiple pathogens with evolutionary game theory. We show bistability of strategies in the parameter space and finally discuss the emergence of competition and cooperation of pathogens.