R
Ramsès Djidjou-Demasse
Researcher at Centre national de la recherche scientifique
Publications - 35
Citations - 405
Ramsès Djidjou-Demasse is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Population & Basic reproduction number. The author has an hindex of 9, co-authored 27 publications receiving 252 citations. Previous affiliations of Ramsès Djidjou-Demasse include Institut national de la recherche agronomique & University of Montpellier.
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Optimal COVID-19 epidemic control until vaccine deployment
TL;DR: This work uses optimal control theory to explore the best strategy to implement while waiting for the vaccine and finds that such a solution leads to an increasing level of control with a maximum reached near the fourth month of the epidemics and a steady decrease until vaccine deployment.
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Mosaics often outperform pyramids: insights from a model comparing strategies for the deployment of plant resistance genes against viruses in agricultural landscapes.
TL;DR: Mosaic strategies are more versatile than pyramiding strategies, and it is found that deploying a mosaic of three to five resistance genes generally provided effective disease control, unless the epidemics were driven mostly by within-field infections.
Posted ContentDOI
Age-structured non-pharmaceutical interventions for optimal control of COVID-19 epidemic
Quentin Richard,Samuel Alizon,Marc Choisy,Marc Choisy,Mircea T. Sofonea,Ramsès Djidjou-Demasse +5 more
TL;DR: It is shown that the optimal control strategy strongly outperforms other strategies such as uniform constant control over the whole populations or over its younger fraction and brings new facts the debate about age-based control interventions and open promising avenues of research, for instance of age- based contact tracing.
Journal ArticleDOI
Memory is key in capturing COVID-19 epidemiological dynamics.
Mircea T. Sofonea,Bastien Reyné,Baptiste Elie,Ramsès Djidjou-Demasse,Christian Selinger,Yannis Michalakis,Samuel Alizon +6 more
TL;DR: In this paper, the authors developed an original parsimonious discrete-time model that accounts for the effect of the age of infection on the natural history of the SARS-CoV-2 virus.
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Steady state concentration for a phenotypic structured problem modeling the evolutionary epidemiology of spore producing pathogens
TL;DR: In this paper, an integro-differential equation with nonlocal mutation terms was derived to describe the evolutionary epidemiology of spore producing asexual plant pathogens in a homogeneous host population.