Multicentral Agent-Based Model of Four Waves of COVID-19 Spreading in Nizhny Novgorod Region of Russian Federation

Mikhail Kirillin
Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Aleksandr Khilov (Login required)
Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Valeriya Perekatova
Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Ekaterina Sergeeva
Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Daria Kurakina
Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Ilya Fiks
Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Nikolay Saperkin
Institute of Applied Physics RAS, Nizhny Novgorod, Russia
Privolzhsky Research Medical University, Nizhny Novgorod, Russia

Ming Tang
School of Physics and Electronic Science, Shanghai, China

Yong Zou
School of Physics and Electronic Science, Shanghai, China

Elbert Macau
Universidade Federal de São Paul, Brasil

Efim Pelinovsky
Institute of Applied Physics RAS, Nizhny Novgorod, Russia
National Research University – Higher School of Economics, Nizhny Novgorod, Russia

Paper #3589 received 23 Jan 2023; revised manuscript received 13 Feb 2023; accepted for publication 13 Feb 2023; published online 16 Mar 2023.

DOI: 10.18287/JBPE23.09.010306


To study the characteristics of the spread of the COVID-19 pandemic and introduce timely and effective measures, there is a need for models that can predict the impact of various restrictive factors on COVID-19 disease dynamics. In this regard, it seems expedient to employ agent-based models that can take into account various characteristics of the population (for example, age distribution and social activity) and restrictive measures, testing, etc., as well as random factors that are usually omitted in traditionally used modifications of Susceptible-Infected-Recovered (SIR) type models. This paper presents the development of the previously proposed agent model for numerical simulation of the spread of COVID-19, namely, the transition from a single-center model, in which all agents interact within one common pool, to a multi-center model, in which the agents under consideration are distributed over several centers of interactions, and are also redistributed over time to other pools. This model allows us to more accurately simulate the epidemic dynamic within one region, when the patient zero usually arrives at the regional center, after which the distribution chains capture the periphery of the region due to pendulum migration. This paper demonstrates the application of the developed model to analyze the epidemic spread in the Nizhny Novgorod region of Russian Federation. Simulated dynamics of the daily number of newly detected cases and COVID-19-associated deaths is in good agreement with official statistics. Modeling results suggest that the actual number of COVID-19 cases is 1.5–3 times higher than the number of reported cases. The developed model also takes into account the process of vaccination. It is shown that with the same modeling parameters, but without vaccination, the third and fourth waves of the pandemic would be characterized by a significant increase in the incidence and the formation of natural immunity, but the number of deaths would exceed the real one by about 9 times.


Dynamics and control of epidemics; COVID-19; agent-based modeling

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