http://currents.plos.org/outbreaks/article/control-of-a-reassortant-pandemic-2009-h1n1-influenza-virus-outbreak-in-an-intensive-swine-breeding-farm-effect-of-vaccination-and-enhanced-farm-management-practices/ Thu, 20 Oct 2016 19:25:51 +0000 hourly 1 https://wordpress.org/?v=4.5.3