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Articles by Fakhteh Ghanbarnejad
The Big Bang of an epidemic: a metapopulation approach to identify the spatiotemporal origin of contagious diseases and their universal spreading pattern | Scientific Reports
Abstract In this paper, we propose a mathematical framework that governs the evolution of epidemic dynamics, encompassing both intra-population dynamics and inter-population mobility within a meta-population network. By linearizing this dynamical system, we can identify the spatial starting point(s), namely the source(s) and the initiation time of the epidemic, which we refer to as the “Big Bang” of the epidemic.
[2405.03703] The big bang of an epidemic
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[2304.14684] Recreational Mobility Prior and During the COVID-19 Pandemic
[Submitted on 28 Apr 2023] Title:Recreational Mobility Prior and During the COVID-19 Pandemic Download a PDF of the paper titled Recreational Mobility Prior and During the COVID-19 Pandemic, by Zahra Ghadiri and 3 other authors Download PDF Abstract: The COVID-19 pandemic and the resulting economic recession negatively affected many people's physical, social, and psychological health.
Emergence of Hopf bifurcation in an extended SIR dynamic
Loading metrics Open Access Peer-reviewed Research Article Abstract In this paper, the original SIR model is improved by considering a new compartment, representing the hospitalization of critical cases. A system of differential equations with four blocks is developed to analyze the treatment of severe cases in an Intensive Care Unit (ICU).
Phase transitions in cooperative coinfections: Simulation results for networks and lattices
We study the spreading of two mutually cooperative diseases on different network topologies, and with two microscopic realizations, both of which are stochastic versions of a susceptible-infected-removed type model studied by us recently in mean field approximation. There it had been found that cooperativity can lead to first order transitions from spreading to extinction.
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