摘要It was reported by Cummings et al. [Nature 427(2004)344] that there are periodic waves in the spatiotemporal data of epidemics. For understanding the mechanism, we study the epidemic spreading on community networks by both the SIS model and the SIRS model. We find that with the increase of infection rate, the number of total infected nodes may be stabilized at a fixed point, oscillatory waves, and periodic cycles. Moreover, the epidemic spreading in the SIS model can be explained by an analytic map.
Abstract:It was reported by Cummings et al. [Nature 427(2004)344] that there are periodic waves in the spatiotemporal data of epidemics. For understanding the mechanism, we study the epidemic spreading on community networks by both the SIS model and the SIRS model. We find that with the increase of infection rate, the number of total infected nodes may be stabilized at a fixed point, oscillatory waves, and periodic cycles. Moreover, the epidemic spreading in the SIS model can be explained by an analytic map.
[1] Pastor-Satorras R and Vespignani A 2001 Phys. Rev. Lett. 86 3200 Pastor-Satorras R and Vespignani A 2001 Phys. Rev. E 63 066117 [2] Joo J and Lebowitz J L 2004 Phys. Rev. E 69 066105 [3] Barthelemy M and Barrat A 2005 J. Theor. Biol. 235 275 [4] Zheng D F, Hui P M, Trimper S and Zheng B 2005 Physica A 352 659 [5] Liu Z, Lai Y C and Ye N 2003 Phys. Rev. E 67 031911 [6] Naim E B 2004 Phys. Rev. E 69 050901(R) [7] Shao Z G and Sang J P 2005 Physica A 351 662 [8] Newman M E J 2002 Phys. Rev. E 66 016128 [9] Yan G, Zhou T, Wang J, Fu Z Q and Wang B H 2005 Chin.Phys. Lett. 22 510 [10] Zhang H, Liu Z and Ma W 2006 Chin. Phys. Lett. 231050 [11] Anderson R M and May R M 1992 Infections Diseases inHumans (Oxford: Oxford University Press) [12] Kuperman M and Abramson G 2001 Phys. Rev. Lett. 862909 [13] Cummings D A T et al. 2004 Nature 427 344 [14] Vecchio A, Primavera L and Carbone V 2006 Phys. Rev. E 73 031913 [15] Newman M E J 2002 Phys. Rev. Lett. 89 208701 [16] Jin E M, Girvan M and Newman M E J 2001 Phys. Rev. E 64 046132 [17] Liu Z and Hu B 2005 Europhys. Lett. 72 315