No coexistence for free: neutral null models for multistrain pathogens.
No coexistence for free: neutral null models for multistrain pathogens.
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DOI:
10.1016/j.epidem.2008.07.001
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发表时间:
2009-03
期刊:
影响因子:
3.8
通讯作者:
Fraser, Christophe
中科院分区:
文献类型:
--
作者:
Lipsitch, Marc;Colijn, Caroline;Cohen, Ted;Hanage, William P.;Fraser, Christophe
关键词:
In most pathogens, multiple strains are maintained within host populations. Quantifying the mechanisms underlying strain coexistence would aid public health planning and improve understanding of disease dynamics. We argue that mathematical models of strain coexistence, when applied to indistinguishable strains, should meet criteria for both ecological neutrality and population genetic neutrality. We show that closed clonal transmission models which can be written in an “ancestor-tracing” form that meets the former criterion will also satisfy the latter. Neutral models can be a parsimonious starting point for studying mechanisms of strain coexistence; implications for past and future studies are discussed.
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