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首页> 外文期刊>The Royal Society Proceedings B: Biological Sciences >The curse of the pharaoh hypothesis.
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The curse of the pharaoh hypothesis.

机译：法老假说的诅咒。

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The 'curse of the pharaoh' has been used as a metaphor for the hypothesis that higher parasite propagule survival selects for higher virulence. Indeed, the mysterious death of Lord Carnavon after entering the tomb of the Egyptian pharaoh Tutankhamen could potentially be explained by an infection with a highly virulent and very long-lived pathogen. In this paper, I investigate whether parasite virulence increases with high propagule survival. In this respect, I derive an analytic expression of the evolutionarily stable level of parasite virulence as a function of propagule survival rate when the host-parasite system has reached a stable ecological equilibrium. This result shows that, if multiple infection occurs, higher propagule survival generally increases parasite virulence. This effect is enhanced when parasite dispersal coevolves with parasite virulence. In a more general perspective, the model shows the importance of taking into account the combination of direct and indirect effects (which I call inclusive effects) of higher transmission ability on the evolution of parasite virulence. The recognition of these effects has several practical implications for virulence management.
机译：“法老的诅咒”被用作比喻，即较高的寄生虫繁殖体存活率选择较高的毒性。的确，卡纳冯勋爵进入埃及法老王图坦卡门（Tutankhamen）墓后的神秘死亡可能是由高毒力和长寿命病原体感染引起的。在本文中，我调查了寄生虫毒力是否随着繁殖繁殖力的提高而增加。在这方面，当宿主-寄生虫系统达到稳定的生态平衡时，我得出了寄生虫毒力的进化稳定水平与繁殖存活率的函数的解析表达式。该结果表明，如果发生多重感染，则较高的繁殖繁殖力通常会增加寄生虫的毒力。当寄生虫扩散与寄生虫毒力共同进化时，这种效果会增强。从更一般的角度来看，该模型显示了考虑到更高的传播能力对寄生虫毒力进化的直接和间接作用（我称之为包容作用）的组合的重要性。对这些影响的认识对于毒力管理具有若干实际意义。

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