The effect of biodiversity on the Hantavirus epizootic

Details The effect of biodiversity on the Hantavirus epizootic The effect of biodiversity on the Hantavirus epizootic

2004-07-14

arxiv.org/abs/q-bio/0407021v2

Ecology 87(4) pages 873-879, 2006.

Biology

Quantitative Biology

Populations and Evolution

Major revision, accepted in Ecology

Scientific paper

We analyze a mathematical model of the epizootic of Hantavirus in mice population, including the effect of species which compete with the host. We show that the existence of the second species has an important consequence for the prevalence of the infectious agent in the host. When the two mice species survive in the ecosystem, the competitive pressure of the second species may lead to reduction or complete elimination of the prevalence of infection. The transition between the disappearance of the infection and its presence occurs at a critical value of the competitor's population, resembling a second order phase transition in a statistical system. The results provide a rigorous framework for the study of the impact of biodiversity in the propagation of infectious diseases, and further lends itself to future experimental verification.

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