Epidemic thresholds in a heterogenous population with competing strains |
| |
Authors: | Wu Qing-Chu Fu Xin-Chu and Yang Meng |
| |
Institution: | Department of Mathematics, Shanghai University, Shanghai 200444, China; College of Mathematics and Information Science, Jiangxi Normal University, Nanchang 330022, China |
| |
Abstract: | Among many epidemic models, one epidemic disease may transmit with the existence of other pathogens or other strains from the same pathogen. In this paper, we consider the case where all of the strains obey the susceptible-infected-susceptible mechanism and compete with each other at the expense of common susceptible individuals. By using the heterogenous mean-field approach, we discuss the epidemic threshold for one of two strains. We confirm the existence of epidemic threshold in both finite and infinite populations subject to underlying epidemic transmission. Simulations in the Barabasi-Albert (BA) scale-free networks are in good agreement with the analytical results. |
| |
Keywords: | complex network epidemic threshold epidemic dynamics |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|