Title :

How does the host community structure affect the epidemiological dynamics of emerging infectious diseases?

Author(s) :

Voinson, Marina [Auteur correspondant]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Duke University [Durham]
Smadi, Charline [Auteur]
Institut Fourier [IF]
Laboratoire des EcoSystèmes et des Sociétés en Montagne [UR LESSEM]
Billiard, Sylvain [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]

Journal title :

ECOLOGICAL MODELLING

Publisher :

Elsevier

Publication date :

2022

ISSN :

0304-3800

English keyword(s) :

Multi-host processes
Animal–human interface
Emerging infectious diseases
Zoonotic pathogens
Stochastic processes
Intermediate host

HAL domain(s) :

Sciences du Vivant [q-bio]/Médecine humaine et pathologie/Maladies infectieuses
Sciences du Vivant [q-bio]/Médecine humaine et pathologie/Maladies émergentes
Sciences du Vivant [q-bio]/Santé publique et épidémiologie
Statistiques [stat]/Applications [stat.AP]

English abstract : [en]

Many pathogens, especially those responsible for emerging infectious diseases, are transmitted in a host community. How the host community structure affects an epidemic is still debated, particularly whether increasing the ...
Show more >Many pathogens, especially those responsible for emerging infectious diseases, are transmitted in a host community. How the host community structure affects an epidemic is still debated, particularly whether increasing the host community complexity would tend to amplify or dilute the incidence of an epidemic in a target population, e.g. humans or cattle. In this paper, we build a stochastic Susceptible–Infectious–Recovered model (SIR) and compare epidemiological dynamics in a target population between three simple host community structures with an increasing complexity. Globally, our results show two possible main outcomes. First, an intermediate host can have a diluting effect by preventing the direct transmission from hosts to the target population, thus reducing the prevalence of infection. Second, when the infection comes from two different sources (e.g. two different populations), the effects of the epidemic in the target population are generally amplified. By highlighting that the structure of the ecological hosts network can dramatically affect epidemics, our results may have implications for the control of emerging infectious diseases.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Évolution, Écologie et Paléontologie (Evo Eco Paleo) - UMR 8198

Source :

Harvested from HAL