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- W3103386405 abstract "The paper studies multi-competitive continuous-time epidemic processes in the presence of a shared resource. We consider the setting where multiple viruses are simultaneously prevalent in the population, and the spread occurs due to not only individual-to-individual interaction but also due to individual-to-resource interaction. In such a setting, an individual is either not affected by any of the viruses, or infected by one and exactly one of the multiple viruses. We classify the equilibria into three classes: a) the healthy state (all viruses are eradicated), b) single-virus endemic equilibria (all but one viruses are eradicated), and c) coexisting equilibria (multiple viruses simultaneously infect separate fractions of the population). We provide i) a sufficient condition for exponential (resp. asymptotic) eradication of a virus; ii) a sufficient condition for the existence, uniqueness and asymptotic stability of a single-virus endemic equilibrium; iii) a necessary and sufficient condition for the healthy state to be the unique equilibrium; and iv) for the bi-virus setting (i.e., two competing viruses), a sufficient condition and a necessary condition for the existence of a coexisting equilibrium. Building on these analytical results, we provide two mitigation strategies: a technique that guarantees convergence to the healthy state; and, in a bi-virus setup, a scheme that employs one virus to ensure that the other virus is eradicated. The results are illustrated in a numerical study of a spread scenario in Stockholm city." @default.
- W3103386405 created "2020-11-23" @default.
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- W3103386405 date "2020-11-15" @default.
- W3103386405 modified "2023-10-01" @default.
- W3103386405 title "Networked Multi-Virus Spread with a Shared Resource: Analysis and Mitigation Strategies." @default.
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