A MULTI-PATCH MALARIA MODEL WITH LOGISTIC GROWTH POPULATIONS.
A MULTI-PATCH MALARIA MODEL WITH LOGISTIC GROWTH POPULATIONS.
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DOI:
10.1137/110850761
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发表时间:
2012-01-01
影响因子:
1.9
通讯作者:
Ruan S
中科院分区:
文献类型:
--
作者:
Gao D;Ruan S
In this paper, we propose a multi-patch model to study the effects of population dispersal on the spatial spread of malaria between patches. The basic reproduction number is derived and it is shown that the disease-free equilibrium is locally asymptotically stable if and unstable if . Bounds on the disease-free equilibrium and are given. A sufficient condition for the existence of an endemic equilibrium when is obtained. For the two-patch submodel, the dependence of on the movement of exposed, infectious, and recovered humans between the two patches is investigated. Numerical simulations indicate that travel can help the disease to become endemic in both patches, even though the disease dies out in each isolated patch. However, if travel rates are continuously increased, the disease may die out again in both patches.
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