An SIS Epidemic Model with Infective Medium and Feedback Mechanism on Scale-Free Networks - Open Access Library Journal

OALibJ > Vol.4 No.5, May 2017

An SIS Epidemic Model with Infective Medium and Feedback Mechanism on Scale-Free Networks ()

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DOI: 10.4236/oalib.1103598 781 Downloads 1,362 Views Citations

Author(s)

Xiongding Liu, Tao Li^*, Yuanmei Wang, Chen Wan, Jing Dong

Affiliation(s)

School of Electronics and Information, Yangtze University, Jingzhou, China.

ABSTRACT

In this paper, a modified SIS (susceptible-infected-susceptible) model with infective medium and feedback mechanism on scale-free networks is presented. The model is suited to describe some epidemic spreading which are not only transmitting by medium but also spreading between individuals by direct contacts. Considering biological relevance and people’s subjective consciousness, we introduce medium and feedback to describe the epidemic spreading. By mathematical analysis, we obtain the epidemic threshold and equilibriums. Simulation shows that the medium parameter can change the threshold, and the bigger it is, the easier epidemic breaks. Feedback parameter cannot change the basic reproductive number, but it can reduce the endemic level and weaken the epidemic spreading.

KEYWORDS

Infective Medium, Feedback Mechanism, Basic Reproductive Number, Scale-Free Networks, Equilibrium

Share and Cite:

Liu, X. , Li, T. , Wang, Y. , Wan, C. and Dong, J. (2017) An SIS Epidemic Model with Infective Medium and Feedback Mechanism on Scale-Free Networks. Open Access Library Journal, 4, 1-9. doi: 10.4236/oalib.1103598.

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