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To reduce the biases of traditional survey-based methods, this paper proposes an epidemic model-based approach to inference the incubation period distribution of COVID-19 utilizing the publicly reported confirmed case number. We construct…

种群与进化 · 定量生物学 2020-07-23 Shiyang Lai , Tianqi Zhao , Ningyuan Fan

This manuscript proposes a model of $n$ distinct populations interaction structured SEIR to describe the spread of COVID-19 pandemic diseases. The proposed model has the flexibility to include geographically separated communities as well as…

种群与进化 · 定量生物学 2020-08-04 Matheus Jatkoske Lazo , Adriano De Cezaro

We introduce a minimalist outbreak forecasting model that combines data-driven parameter estimation with variational data assimilation. By focusing on the fundamental components of nonlinear disease transmission and representing data in a…

种群与进化 · 定量生物学 2021-10-12 Hannah R. Biegel , Joceline Lega

Understanding the dynamics of the COVID-19 pandemic is crucial for improved control and social distancing strategies. To that effect, we have employed the susceptible-exposed-infectious-recovered model, refined by contact tracing and…

种群与进化 · 定量生物学 2021-01-13 Subhas Khajanchi , Kankan Sarkar , Jayanta Mondal

We study the reported data from the COVID-19 pandemic outbreak in January - May 2020 in 119 countries. We observe that the time series of active cases in individual countries (the difference of the total number of confirmed infections and…

种群与进化 · 定量生物学 2020-05-15 Katarina Bodova , Richard Kollar

Intent of this research is to explore how mathematical models, specifically Susceptible-Infected-Removed (SIR) model, can be utilized to forecast peak outbreak timeline of COVID-19 epidemic amongst a population of interest starting from the…

种群与进化 · 定量生物学 2020-09-14 Amit Tewari

Stochastic epidemic models which incorporate interactions between space and human mobility are a key tool to inform prioritisation of outbreak control to appropriate locations. However, methods for fitting such models to national-level…

Comparing how different populations have suffered under COVID-19 is a core part of ongoing investigations into how public policy and social inequalities influence the number of and severity of COVID-19 cases. But COVID-19 incidence can vary…

种群与进化 · 定量生物学 2022-11-17 Ryan Wilkinson , Marcus Roper

This paper presents a study on a compartmental epidemic model for COVID-19, examining the stability of its equilibrium points upon the introduction of vaccination as a strategy to mitigate the spread of the disease. Initially, the SIQR…

数值分析 · 数学 2024-05-29 Leonardo R. S. Rodrigues , Felipe Gabrielli

The worldwide outbreak of COVID-19 has posed a dire threat to the public. Human mobility has changed in various ways over the course of the pandemic. Despite current studies on common mobility metrics, research specifically on…

物理与社会 · 物理学 2020-07-08 Weiyi Zhou , Minha Lee , Qianqian Sun , Weiyu Luo , Chenfeng Xiong , Lei Zhang

Mexico, like the rest of the world, is currently facing the The COVID-19 pandemic. Given the size of its territory, the efforts to contain the disease have involved both national and regional measures. For this work, the curves of daily new…

物理与社会 · 物理学 2020-06-23 Guillermo de Anda-Jáuregui

Epidemic dynamics in a stochastic network of interacting epidemic centers is considered. The epidemic and migration processes are modelled by Markov's chains. Explicit formulas for probability distribution of the migration process are…

种群与进化 · 定量生物学 2015-05-05 Igor Sazonov , Mark Kelbert

The spread of COVID-19 revealed that transmission risk patterns are not homogenous across different cities and communities, and various heterogeneous features can influence the spread trajectories. Hence, for predictive pandemic monitoring,…

机器学习 · 计算机科学 2022-09-22 Junwei Ma , Bo Li , Qingchun Li , Chao Fan , Ali Mostafavi

In this work, we extend our previously developed compartmental SEIQRD model for SARS-CoV-2 in Belgium. We introduce SARS-CoV-2 variants of concern, vaccines, and seasonality in our model, as their addition has proven necessary for modelling…

物理与社会 · 物理学 2024-01-12 Tijs W. Alleman , Michiel Rollier , Jenna Vergeynst , Jan M. Baetens

We study the spreading of cooperative infections in an empirical temporal network of contacts between people, including health care workers and patients, in a hospital. The system exhibits a phase transition leading to one or several…

物理与社会 · 物理学 2018-02-08 Jorge P. Rodríguez , Fakhteh Ghanbarnejad , Víctor M. Eguíluz

Here we propose and implement a generalized mathematical model to find the time evolution of population in infectious diseases and apply the model to study the recent COVID-19 pandemic. Our model at the core is a non-local generalization of…

种群与进化 · 定量生物学 2020-05-01 Saumyak Mukherjee , Sayantan Mondal , Biman Bagchi

Most previous studies of epidemic dynamics on complex networks suppose that the disease will eventually stabilize at either a disease-free state or an endemic one. In reality, however, some epidemics always exhibit sporadic and recurrent…

物理与社会 · 物理学 2013-11-19 Xiao-Long Peng , Michael Small , Xin-Jian Xu , Xinchu Fu

While most existing epidemic models focus on the influence of isolated factors, infectious disease transmission is inherently shaped by the complex interplay of multiple interacting elements. To better capture real-world dynamics, it is…

物理与社会 · 物理学 2025-04-18 Guangyuan Mei , Yao Cai , Su-Su Zhang , Ying Huang , Chuang Liu , Xiu-Xiu Zhan

In this paper, a stochastic SEQIR epidemic model with Markovian regime-switching is proposed and investigated. The governmental policy and implement efficiency are concerned by a generalized incidence function of the susceptible class. We…

概率论 · 数学 2024-02-27 Hongjie Fan , Kai Wang , Yanling Zhu

Multi-state models are frequently applied for representing processes evolving through a discrete set of state. Important classes of multi-state models arise when transitions between states may depend on the time since entry into the current…

统计方法学 · 统计学 2022-02-28 Rosario Barone , Andrea Tancredi