Efficient simulation of the spatial transmission dynamics of influenza.
Efficient simulation of the spatial transmission dynamics of influenza.
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DOI:
10.1371/journal.pone.0013292
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发表时间:
2010-11-04
期刊:
影响因子:
3.7
通讯作者:
Hsu TS
中科院分区:
文献类型:
--
作者:
Tsai MT;Chern TC;Chuang JH;Hsueh CW;Kuo HS;Liau CJ;Riley S;Shen BJ;Shen CH;Wang DW;Hsu TS
Early data from the 2009 H1N1 pandemic (H1N1pdm) suggest that previous studies over-estimated the within-country rate of spatial spread of pandemic influenza. As large spatially resolved data sets are constructed, the need for efficient simulation code with which to investigate the spatial patterns of the pandemic becomes clear. Here, we present a significant improvement to the efficiency of an individual-based stochastic disease simulation framework commonly used in multiple previous studies. We quantify the efficiency of the revised algorithm and present an alternative parameterization of the model in terms of the basic reproductive number. We apply the model to the population of Taiwan and demonstrate how the location of the initial seed can influence spatial incidence profiles and the overall spread of the epidemic. Differences in incidence are driven by the relative connectivity of alternate seed locations. The ability to perform efficient simulation allows us to run a batch of simulations and take account of their average in real time. The averaged data are stable and can be used to differentiate spreading patterns that are not readily seen by only conducting a few runs.
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DOI:
10.1126/science.1177373
发表时间:
2009-10-30
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Yang Y;Sugimoto JD;Halloran ME;Basta NE;Chao DL;Matrajt L;Potter G;Kenah E;Longini IM Jr
通讯作者:
Longini IM Jr
影响因子:
56.9
作者:
Halloran, ME;Longini, IM;Yang, Y
通讯作者:
Yang, Y
影响因子:
56.9
作者:
Viboud, C;Bjornstad, ON;Grenfell, BT
通讯作者:
Grenfell, BT
影响因子:
2
作者:
FLAHAULT, A;LETRAIT, S;VALLERON, AJ
通讯作者:
VALLERON, AJ
DOI:
10.1073/pnas.0601266103
发表时间:
2006-04-11
影响因子:
11.1
作者:
Germann, TC;Kadau, K;Macken, CA
通讯作者:
Macken, CA