Archimedean copula and contagion modeling in epidemiology

Demongeot, Jacques; Ghassani, Mohamad; Rachdi, Mustapha; Ouassou, Idir; Taramasco, Carla

doi:10.3934/nhm.2013.8.149

Cited by 9 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These seasonal changes could occur in exactly the same way as for other pathogens, like the common cold or influenza [9][10][11][12]. This phenomenon can be modelled and the deterministic as well as stochastic models [2,[13][14][15][16][17][18][19][20][21][22][23][24][25] include potentially temperature-dependent parameters, like the contagion coefficient increasing with cold, dry weather because of faster evaporation of aerosol droplets. The present paper aims to identify such parameters from the covid-19 spread dynamics.…”

Section: Introductionmentioning

confidence: 99%

Temperature Decreases Spread Parameters of the New Covid-19 Case Dynamics

Demongeot

Flet-Berliac

Seligmann

2020

Biology

Self Cite

137

152

View full text Add to dashboard Cite

1) Background: The virulence of coronavirus diseases due to viruses like SARS-CoV or MERS-CoV decreases in humid and hot weather. The putative temperature dependence of infectivity by the new coronavirus SARS-CoV-2 or covid-19 has a high predictive medical interest. (2) Methods: External temperature and new covid-19 cases in 21 countries and in the French administrative regions were collected from public data. Associations between epidemiological parameters of the new case dynamics and temperature were examined using an ARIMA model. (3) Results: We show that, in the first stages of the epidemic, the velocity of contagion decreases with country-or region-wise temperature. (4) Conclusions: Results indicate that high temperatures diminish initial contagion rates, but seasonal temperature effects at later stages of the epidemy remain questionable. Confinement policies and other eviction rules should account for climatological heterogeneities, in order to adapt the public health decisions to possible geographic or seasonal gradients.

show abstract

Section: Introductionmentioning

confidence: 99%

Temperature Decreases Spread Parameters of the New Covid-19 Case Dynamics

Demongeot

Flet-Berliac

Seligmann

2020

Biology

Self Cite

137

152

View full text Add to dashboard Cite

show abstract

“…This quadratic term is also present in the interaction potential of Hopfield like networks in which the study of the robustness with respect to the contagion parameter changes has been performed [59][60][61][62][63][64][65][66][67][68][69] as well as in recent studies taking into account the spatial character of the disease spread. [70][71][72][73][74][75][76][77][78] Confinement and Saturation The localization of contamination has been treated by different authors. 79,80 When contagion occurs in confined locations (like professional, educational or residence buildings), we can use saturation dynamics terms coming from the enzymatic kinetics (cf.…”

Section: The Dynamics Of Contactsmentioning

confidence: 99%

Discrete dynamics of contagious social diseases: Example of obesity

2015

View full text Add to dashboard Cite

Modeling contagious diseases needs to incorporate information about social networks through which the disease spreads as well as data about demographic and genetic changes in the susceptible population. In this paper, we propose a theoretical framework (conceptualization and formalization) which seeks to model obesity as a process of transformation of one's own body determined by individual (physical and psychological), inter-individual (relational, i.e., relative to the relationship between the individual and others) and socio-cultural (environmental, i.e., relative to the relationship between the individual and his milieu) factors. Individual and inter-individual factors are tied to each other in a socio-cultural context whose impact is notably related to the visibility of anybody being exposed on the public stage in a non-contingent way. The question we are dealing with in this article is whether such kind of social diseases, i.e., depending upon socio-environmental exposure, can be considered as "contagious". In other words, can obesity be propagated from individual to individual or from environmental sources throughout an entire population?

show abstract

“…For more than 2 decades, the complex networks have been the focus of many researchers due to their multiple applications in economy, traffic problems, spread of diseases, electrical networks, biological systems and the famous social networks (see for instance [1][2][3][4][5][6][7]). Furthermore, in discrete mathematics the most important object is the graph.…”

Section: Introductionmentioning

confidence: 99%

Protection Strategy for Edge-Weighted Graphs in Disease Spread

2021

Self Cite

View full text Add to dashboard Cite

Fake news, viruses on computer systems or infectious diseases on communities are some of the problems that are addressed by researchers dedicated to study complex networks. The immunization process is the solution to these challenges and hence the importance of obtaining immunization strategies that control these spreads. In this paper, we evaluate the effectiveness of the DIL-Wα ranking in the immunization of nodes that are attacked by an infectious disease that spreads on an edge-weighted graph using a graph-based SIR model. The experimentation was done on real and scale-free networks and the results illustrate the benefits of this ranking.

show abstract

Archimedean copula and contagion modeling in epidemiology

Cited by 9 publications

References 29 publications

Temperature Decreases Spread Parameters of the New Covid-19 Case Dynamics

Temperature Decreases Spread Parameters of the New Covid-19 Case Dynamics

Discrete dynamics of contagious social diseases: Example of obesity

Protection Strategy for Edge-Weighted Graphs in Disease Spread

Contact Info

Product

Resources

About