Journal
COMPLEXITY
Volume 2022, Issue -, Pages -Publisher
WILEY-HINDAWI
DOI: 10.1155/2022/4247800
Keywords
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Funding
- UAEU-ZU Joint Research, fund [12S107-2022]
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This paper studies the dynamics of COVID-19 in the UAE by considering vaccination, time-delays, and random noise. The results show that the disease can persist stochastically or be eradicated. Numerical simulations and real observations support the theoretical results. Stochastic perturbations and time-delays enhance the dynamics of the model.
In this paper, we study the dynamics of COVID-19 in the UAE with an extended SEIR epidemic model with vaccination, time-delays, and random noise. The stationary ergodic distribution of positive solutions is examined, in which the solution fluctuates around the equilibrium of the deterministic case, causing the disease to persist stochastically. It is possible to attain infection-free status (extinction) in some situations, in which diseases die out exponentially and with a probability of one. The numerical simulations and fit to real observations prove the effectiveness of the theoretical results. Combining stochastic perturbations with time-delays enhances the dynamics of the model, and white noise intensity is an important part of the treatment of infectious diseases.
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