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In this paper, we discussed an infinitely distributed delayed viral infection model with nonlinear immune response and general incidence rate. We proved the existence and uniqueness of the equilibria. By using the Lyapunov functional and…

Dynamical Systems · Mathematics 2018-02-13 Eric Ávila-Vales , Abraham Canul-Pech , Erika Rivero Esquivel

We study the global dynamics of a reaction-diffusion SEIR infection model with distributed delay and nonlinear incidence rate. The well-posedness of the proposed model is proved. By means of Lyapunov functionals, we show that the disease…

Populations and Evolution · Quantitative Biology 2022-04-21 Abdesslem Lamrani Alaoui , Moulay Rchid Sidi Ammi , Mouhcine Tilioua , Delfim F. M. Torres

A virus dynamics model with intracellular state-dependent delay and nonlinear infection rate of Beddington-DeAngelis functional response is studied. The technique of Lyapunov functionals is used to analyze stability of an interior infection…

Dynamical Systems · Mathematics 2017-06-29 Alexander Rezounenko

In [Math. Comput. Sci. 12 (2018), no. 2, 111--127], a delayed model describing the dynamics of the Human Immunodeficiency Virus (HIV) with Cytotoxic T Lymphocytes (CTL) immune response is investigated by Allali, Harroudi and Torres. Here,…

Dynamical Systems · Mathematics 2022-10-03 Sandra Vaz , Delfim F. M. Torres

We study the global stability of a class of models for in-vivo virus dynamics, that take into account the CTL immune response and display antigenic variation. This class includes a number of models that have been extensively used to model…

Populations and Evolution · Quantitative Biology 2013-01-21 Max O. Souza , Jorge P. Zubelli

An epidemic model with distributed time delay is derived to describe the dynamics of infectious diseases with varying immunity. It is shown that solutions are always positive, and the model has at most two steady states: disease-free and…

Chaotic Dynamics · Physics 2012-09-21 K. B. Blyuss , Y. N. Kyrychko

In this paper, we propose a delayed cytokine-enhanced viral infection model incorporating saturation incidence and immune response. We compute the basic reproduction numbers and introduce a convex cone to discuss the impact of non-negative…

Dynamical Systems · Mathematics 2024-09-17 Xiaodong Cao , Songbo Hou , Xiaoqing Kong

A class of reaction-diffusion virus dynamics models with intracellular state-dependent delay and a general non-linear infection rate functional response is investigated. We are interested in classical solutions with Lipschitz in-time…

Dynamical Systems · Mathematics 2019-01-01 Alexander Rezounenko

Transmission dynamics of infectious diseases are often studied using compartmental mathematical models, which are commonly represented as systems of autonomous ordinary differential equations. A key step in the analysis of such models is to…

Populations and Evolution · Quantitative Biology 2025-12-15 David J. D. Earn , C. Connell McCluskey

In this paper, a mathematical analysis of the global dynamics of a partial differential equation viral infection cellular model is carried out. We study the dynamics of a hepatitis C virus (HCV) model, under therapy, that considers both…

Analysis of PDEs · Mathematics 2021-11-08 Alexis Nangue , Bruno Nde Tchiffo

We investigate the global behaviour of a SIRI epidemic model with distributed delay and relapse. From the theory of functional differential equations with delay, we prove that the solution of the system is unique, bounded, and positive, for…

Classical Analysis and ODEs · Mathematics 2019-08-12 Abdelhai Elazzouzi , Abdesslem Lamrani Alaoui , Mouhcine Tilioua , Delfim F. M. Torres

In this chapter, we consider a reaction-diffusion SVIR infection model with dis-tributed delay and nonlinear incidence rate. The wellposedness of the proposed model is proved. By means of Lyapunov functionals, we show that the disease-free…

Dynamical Systems · Mathematics 2025-03-10 Achraf Zinihi , Mostafa Tahiri , Moulay Rchid Sidi Ammi

A major contribution to the onset and development of autoimmune disease is known to come from infections. An important practical problem is identifying the precise mechanism by which the breakdown of immune tolerance as a result of immune…

Quantitative Methods · Quantitative Biology 2018-05-21 F. Fatehi Chenar , Y. N. Kyrychko , K. B. Blyuss

We investigate the global dynamics of a renewal-type epidemic model with variable susceptibility. We show that in this extended model there exists a unique endemic equilibrium and prove that it is globally asymptotically stable when $R_0 >…

Dynamical Systems · Mathematics 2020-07-24 Michael T. Meehan , Daniel G. Cocks , Emma S. McBryde

In this work we introduce a differential equation model with time-delay that describes the three-stage dynamics and the two time scales observed in HIV infection. Assuming that the virus has high mutation and rapid reproduction rates that…

Biological Physics · Physics 2015-03-13 Flora S. Bacelar , Roberto F. S. Andrade , Rita M. Zorzenon dos Santos

Some viruses, such as human immunodeficiency virus, can infect several types of cell populations. The age of infection can also affect the dynamics of infected cells and production of viral particles. In this work, we study a virus model…

Dynamical Systems · Mathematics 2022-09-07 Ángel Cervantes-Pérez , Eric Ávila-Vales

We investigate the global dynamics of a general Kermack-McKendrick-type epidemic model formulated in terms of a system of renewal equations. Specifically, we consider a renewal model for which both the force of infection and the infected…

Populations and Evolution · Quantitative Biology 2018-10-04 Michael T. Meehan , Daniel G. Cocks , Johannes Müller , Emma S. McBryde

This research gives a thorough examination of an HIV infection model that includes quiescent cells and immune response dynamics in the host. The model, represented by a system of ordinary differential equations, captures the complex…

Populations and Evolution · Quantitative Biology 2025-03-04 Ibrahim Nali , Attila Dénes , Abdessamad Tridane , Xueyong Zhou

When an infectious disease propagates throughout society, the incidence function may rise at first due to an increase in pathogenicity and then decrease due to inhibitory effects until it reaches saturation. Effective vaccination and…

Dynamical Systems · Mathematics 2023-07-11 Sushil Pathak , G. Shirisha , K. Venkata Ratnam

In this paper, we propose a mathematical model for HIV-1 infection with intracellular delay. The model examines a viral-therapy for controlling infections through recombining HIV-1 virus with a genetically modified virus. For this model,…

Dynamical Systems · Mathematics 2014-04-10 Yun Tian , Yu Bai , Pei Yu
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