Figure 2From: Airborne spread and infection of a novel swine-origin influenza A (H1N1) virusDistribution characteristics of the novel influenza A (H1N1) virus from isolator A and B on the Andersen-8-stage impactor, Based on RT-qPCR results. X-axis: aerodynamic diameter of airborne viral particles on Andersen-8 sampler (from left to right:1-8 stage); Y-axis: the distribution percentage of viral particles on every stage of Andersen-8 sampler.Back to article page