Epidemiological theory of virus variants

Giacomo Cacciapaglia, Corentin Cot, Adele de Hoffer, Stefan Hohenegger, Francesco Sannino and Shahram Vatani

Physica A: Statistical Mechanics and its Applications, 2022, vol. 596, issue C

Abstract: We propose a physics-inspired mathematical model underlying the temporal evolution of competing virus variants that relies on the existence of (quasi) fixed points capturing the large time scale invariance of the dynamics. To motivate our result we first modify the time-honoured compartmental models of the SIR type to account for the existence of competing variants and then show how their evolution can be naturally re-phrased in terms of flow equations ending at quasi fixed points. As the natural next step we employ (near) scale invariance to organise the time evolution of the competing variants within the effective description of the epidemic Renormalisation Group framework. We test the resulting theory against the time evolution of COVID-19 virus variants that validate the theory empirically.

Keywords: Epidemiology; Renormalisation group; Time evolution; Fixed points; Mutation and variants; Field theory (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:596:y:2022:i:c:s0378437122001212

DOI: 10.1016/j.physa.2022.127071

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