Department of Medical Diagnostic Imaging, College of Health Sciences, Sharjah University, Sharjah, United Arab Emirates.
Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
PLoS One. 2024 Apr 18;19(4):e0297476. doi: 10.1371/journal.pone.0297476. eCollection 2024.
This paper mainly addressed the study of the transmission dynamics of infectious diseases and analysed the effect of two different types of viruses simultaneously that cause immunodeficiency in the host. The two infectious diseases that often spread in the populace are HIV and measles. The interaction between measles and HIV can cause severe illness and even fatal patient cases. The effects of the measles virus on the host with HIV infection are studied using a mathematical model and their dynamics. Analysing the dynamics of infectious diseases in communities requires the use of mathematical models. Decisions about public health policy are influenced by mathematical modeling, which sheds light on the efficacy of various control measures, immunization plans, and interventions. We build a mathematical model for disease spread through vertical and horizontal human population transmission, including six coupled nonlinear differential equations with logistic growth. The fundamental reproduction number is examined, which serves as a cutoff point for determining the degree to which a disease will persist or die. We look at the various disease equilibrium points and investigate the regional stability of the disease-free and endemic equilibrium points in the feasible region of the epidemic model. Concurrently, the global stability of the equilibrium points is investigated using the Lyapunov functional approach. Finally, the Runge-Kutta method is utilised for numerical simulation, and graphic illustrations are used to evaluate the impact of different factors on the spread of the illness. Critical factors that effect the dynamics of disease transmission and greatly affect the rate and range of the disease's spread in the population have been determined through a thorough analysis. These factors are crucial in determining the expansion of the disease.
本文主要研究传染病的传播动力学,并分析同时导致宿主免疫缺陷的两种不同类型病毒的影响。两种在人群中经常传播的传染病是 HIV 和麻疹。麻疹和 HIV 之间的相互作用会导致严重疾病,甚至致命的患者病例。使用数学模型和它们的动力学来研究麻疹病毒对 HIV 感染宿主的影响。分析社区中传染病的动态需要使用数学模型。公共卫生政策的决策受到数学建模的影响,这揭示了各种控制措施、免疫计划和干预措施的效果。我们建立了一个通过垂直和水平人群传播疾病的数学模型,包括六个具有逻辑增长的耦合非线性微分方程。研究了基本繁殖数,它是确定疾病持续或消亡程度的临界点。我们研究了各种疾病平衡点,并在传染病模型的可行区域内研究了无病和地方病平衡点的区域稳定性。同时,使用 Lyapunov 函数方法研究了平衡点的全局稳定性。最后,使用龙格-库塔方法进行数值模拟,并使用图形说明来评估不同因素对疾病传播的影响。通过深入分析,确定了影响疾病传播动力学并极大地影响疾病在人群中传播速度和范围的关键因素。这些因素对于确定疾病的传播至关重要。