AN EPIDEMIOLOGICAL MODEL FOR DIRECT AND INDIRECT TRANSMISSION OF TYPHOID-FEVER
AN EPIDEMIOLOGICAL MODEL FOR DIRECT AND INDIRECT TRANSMISSION OF TYPHOID-FEVER
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DOI：
10.1016/0025-5564(89)90081-3
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发表时间：
1989-09-01
影响因子：
4.3
通讯作者：
GONZALEZGUZMAN, J
中科院分区：
文献类型：
--
作者：
GONZALEZGUZMAN, J
改进的SIS流行病学模型考虑了伤寒通常的直接传播(短周期)和间接传播(长周期)。阈值被确定，并且平衡点被证明是全局稳定的。在相应的带有疫苗的模型中，平衡点的局部稳定性被证明。在使用智利伤寒的当前统计数据估计参数后，使用计算机模拟来获得这种疾病的数字行为，并估计几种控制政策的效果。
The modified SIS epidemiological model considers the usual direct transmission (short cycle) and indirect transmission (long cycle) of typhoid fever. Thresholds are determined, and the equilibrium points are shown to be globally stable. Local stability of the equilibrium points is shown in the corresponding model with vaccines. After estimating parameters using current statistical data for typhoid fever in Chile, computer simulations are used to obtain the numerical behavior of this disease and to estimate the effect of several control policies.