A fractional-order model for CoViD-19 dynamics with reinfection and the importance of quarantine

João P.S. Maurício de Carvalho and Beatriz Moreira-Pinto

Chaos, Solitons & Fractals, 2021, vol. 151, issue C

Abstract: Coronavirus disease 2019 (CoViD-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Among many symptoms, cough, fever and tiredness are the most common. People over 60 years old and with associated comorbidities are most likely to develop a worsening health condition. This paper proposes a non-integer order model to describe the dynamics of CoViD-19 in a standard population. The model incorporates the reinfection rate in the individuals recovered from the disease. Numerical simulations are performed for different values of the order of the fractional derivative and of reinfection rate. The results are discussed from a biological point of view.

Keywords: COVID-19; Reinfection; Mathematical model; Epidemic model; Fractional calculus (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:151:y:2021:i:c:s0960077921006299

DOI: 10.1016/j.chaos.2021.111275

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