Modeling the transmission of second-wave COVID-19 caused by imported cases: A case study [0.03%]
二波输入性新冠疫情的传播模拟——以某市为例
Youming Guo,Tingting Li
Youming Guo
As the first-wave COVID-19 has passed in 2020, people's awareness of self-protection began to decline gradually. How to prevent and control the second-wave COVID-19 has become an important issue in many countries and regions. By analyzing t...
A fractional-order mathematical model for analyzing the pandemic trend of COVID-19 [0.03%]
一个分数阶数学模型用于分析COVID-19大流行趋势
Praveen Agarwal,Mohamed A Ramadan,Abdulqawi A M Rageh et al.
Praveen Agarwal et al.
Many countries worldwide have been affected by the outbreak of the novel coronavirus (COVID-19) that was first reported in China. To understand and forecast the transmission dynamics of this disease, fractional-order derivative-based modeli...
Modified SIQR model for the COVID-19 outbreak in several countries [0.03%]
修正SIQR模型在几个国家的COVID-19爆发中的应用
Carla M A Pinto,J A Tenreiro Machado,Clara Burgos-Simón
Carla M A Pinto
In this paper, we propose a modified Susceptible-Infected-Quarantine-Recovered (mSIQR) model, for the COVID-19 pandemic. We start by proving the well-posedness of the model and then compute its reproduction number and the corresponding sens...
Delay differential equations for the spatially resolved simulation of epidemics with specific application to COVID-19 [0.03%]
用于流行病的空间分辨模拟的延迟微分方程及其在COVID-19上的特定应用
Nicola Guglielmi,Elisa Iacomini,Alex Viguerie
Nicola Guglielmi
In the wake of the 2020 COVID-19 epidemic, much work has been performed on the development of mathematical models for the simulation of the epidemic and of disease models generally. Most works follow the susceptible-infected-removed (SIR) c...
Fractional-order backstepping strategy for fractional-order model of COVID-19 outbreak [0.03%]
基于分数阶背步策略的COVID-19爆发数学模型研究
Amir Veisi,Hadi Delavari
Amir Veisi
The coronavirus disease (COVID-19) pandemic has impacted many nations around the world. Recently, new variant of this virus has been identified that have a much higher rate of transmission. Although vaccine production and distribution are c...
Zheng Mingliang,Theodore E Simos,Charalampos Tsitouras
Zheng Mingliang
We provide an easy and accurate method for approximating the reproduction number R 0 defined in an SIR epidemic model. At first, we present a formula extracting the exact R 0 in case of constant rates of infection and recovery assumed in an...
Mathematical modeling of the spread of the coronavirus under strict social restrictions [0.03%]
严格社交限制下的冠状病毒传播数学模型
Mo&#x;tassem Al-Arydah,Hailay Berhe,Khalid Dib et al.
Mo&#x;tassem Al-Arydah et al.
We formulate a simple susceptible-infectious-recovery (SIR) model to describe the spread of the coronavirus under strict social restrictions. The transmission rate in this model is exponentially decreasing with time. We find a formula for b...
Analytical and qualitative investigation of COVID-19 mathematical model under fractional differential operator [0.03%]
分数阶微分算子下COVID-19数学模型的分析与定性研究
Kamal Shah,Muhammad Sher,Hussam Rabai&#x;ah et al.
Kamal Shah et al.
In the current article, we aim to study in detail a novel coronavirus (2019-nCoV or COVID-19) mathematical model for different aspects under Caputo fractional derivative. First, from analysis point of view, existence is necessary to be inve...
A fractional-order model of coronavirus disease 2019 (COVID-19) with governmental action and individual reaction [0.03%]
带有政府行动和个体反应的新型冠状病毒疾病（COVID-19）分数阶模型
Jaouad Danane,Zakia Hammouch,Karam Allali et al.
Jaouad Danane et al.
The deadly coronavirus disease 2019 (COVID-19) has recently affected each corner of the world. Many governments of different countries have imposed strict measures in order to reduce the severity of the infection. In this present paper, we ...
Mathematical analysis of the dynamics of COVID-19 in Africa under the influence of asymptomatic cases and re-infection [0.03%]
渐进病患和再感染影响下的非洲新冠肺炎疫情动力学的数学分析
Abayomi Samuel Oke,Oluwafemi Isaac Bada,Ganiyu Rasaq et al.
Abayomi Samuel Oke et al.
Coronavirus pandemic (COVID-19) hit the world in December 2019, and only less than 5% of the 15 million cases were recorded in Africa. A major call for concern was the significant rise from 2% in May 2020 to 4.67% by the end of July 15, 202...