Results 31 to 40 of about 556,638 (273)

On the basic reproduction number in continuously structured populations [PDF]

Mathematical Methods in the Applied Sciences, 2020
In the framework of population dynamics, the basic reproduction number is, by definition, the expected number of offspring that an individual has during its lifetime. In constant and time periodic environments, it is calculated as the spectral radius of the so‐called next‐generation operator. In continuously structured populations defined in a Banach
Carles Barril, Àngel Calsina, Sílvia Cuadrado, Jordi Ripoll   +3 more
openaire   +6 more sources

The Computational Approach for the Basic Reproduction Number of Epidemic Models on Complex Networks

IEEE Access, 2019
The basic reproduction number plays an important role in exploring the dynamics of the epidemic models. Such value has been extensively used in the estimation of how severe an epidemic outbreak.
Junyuan Yang, Fei Xu
exaly   +2 more sources

Effects of Demographic and Weather Parameters on COVID-19 Basic Reproduction Number

Frontiers in Ecology and Evolution, 2021
It is hard to overstate the importance of a timely prediction of the COVID-19 pandemic progression. Yet, this is not possible without a comprehensive understanding of environmental factors that may affect the infection transmissibility.
Igor Salom, Andjela Rodic, Ognjen Milicevic, Dusan Zigic, Magdalena Djordjevic, Marko Djordjevic   +5 more
doaj   +2 more sources

The Dynamic Effective Reproductive Number of COVID-19 during the Epidemic in Iran

Iranian Journal of Public Health, 2022
Background: We aimed to determine the generation time, the best model for estimating reproduction number (R), and to estimate the basic reproduction number (R0) and effective reproduction number (Rt) for COVID-19 in Iran.
Amin Doosti-Irani, Saiedeh Haji-Maghsoudi, Aliakbar Haghdoost, Sana Eybpoosh, Ehsan Mostafavi, Manoochehr Karami, Hossein Mahjub   +6 more
doaj   +1 more source

The basic reproduction number for scrapie [PDF]

Proceedings of the Royal Society of London. Series B: Biological Sciences, 1999
The basic reproduction number R0 provides a quantitative assessment of the ability of an infectious agent to invade a susceptible host population. A mathematical expression for R0 is derived based on a recently developed model for the spread of scrapie through a flock of sheep.
L, Matthews, M E, Woolhouse, N, Hunter
openaire   +2 more sources

Assessment of transmissibility and measures effectiveness of SARS in 8 regions, China, 2002-2003

Frontiers in Cellular and Infection Microbiology, 2023
BackgroundSevere acute respiratory syndrome (SARS) is a form of atypical pneumonia which took hundreds of lives when it swept the world two decades ago.
Jia Rui, Jia Rui, Jia Rui, Huimin Qu, Shuo Zhang, Hong Liu, Hongjie Wei, Buasiyamu Abudunaibi, Kangguo Li, Yunkang Zhao, Qiao Liu, Kang Fang, Laurent Gavotte, Roger Frutos, Tianmu Chen   +14 more
doaj   +1 more source

Basic reproduction number (R₀) of SARS-CoV-2

Journal of the College of Community Physicians, 2020
No abstract ...
Nuwan Darshana Wickramasinghe, Sumudu Hewage, Surangi Jayakody, Shamini Prathapan, Carukshi Arambepola   +4 more
doaj   +1 more source

Preliminary estimation of the basic reproduction number of novel coronavirus (2019-nCoV) in China, from 2019 to 2020: A data-driven analysis in the early phase of the outbreak

bioRxiv, 2020
Backgrounds An ongoing outbreak of a novel coronavirus (2019-nCoV) pneumonia hit a major city of China, Wuhan, December 2019 and subsequently reached other provinces/regions of China and countries.
Shi Zhao, Qianying Lin, Jinjun Ran, S. Musa, G. Yang, Weiming Wang, Y. Lou, Daozhou Gao, L. Yang, D. He, M. Wang   +10 more
semanticscholar   +1 more source

Basic reproduction number and effective reproduction number for North Cyprus for fighting Covid-19

Қарағанды университетінің хабаршысы. Математика сериясы, 2020
The aim of this paper is to show how North Cyprus fought with Covid-19 by using R0 and Rt, as herd immunity. For that purpose, we used a SEIR model for basic reproduction number, R0, and calculated Rt values by using R0 values. North Cyprus is the first
Evren Hincal, Bilgen Kaymakamzade, Nezihal Gokbulut   +2 more
doaj   +1 more source

Social, economic, and environmental factors influencing the basic reproduction number of COVID-19 across countries

medRxiv, 2021
Objective: To assess whether the basic reproduction number (R0) of COVID-19 is different across countries and what national-level demographic, social, and environmental factors characterize initial vulnerability to the virus.
J. Kong, E. Tekwa, Sarah A. Gignoux-Wolfsohn   +2 more
semanticscholar   +1 more source