IIMAS, UNAM, México, D.F. 04510, México.
J Biol Dyn. 2012;6:281-98. doi: 10.1080/17513758.2011.571721. Epub 2011 Nov 25.
In this paper, we analyse the interaction of different species of birds and mosquitoes on the dynamics of West Nile virus (WNV) infection. We study the different transmission efficiencies of the vectors and birds and the impact on the possible outbreaks. We show that the basic reproductive number is the weighted mean of the basic reproductive number of each species, weighted by the relative abundance of its population in the location. These results suggest a possible explanation of why there are no outbreaks of WNV in Mexico.
在本文中，我们分析了不同鸟类和蚊子物种之间的相互作用对西尼罗河病毒（WNV）感染动态的影响。我们研究了不同传播媒介和鸟类的传播效率及其对可能爆发的影响。我们表明，基本繁殖数是每种物种的基本繁殖数的加权平均值，权重由其在该地点的种群相对丰度决定。这些结果表明，WNV 在墨西哥没有爆发的原因可能得到了一定的解释。
