Characterization of Pseudorabies Virus Associated with Severe Respiratory and Neuronal Signs in Old Pigs

Figure 4

Evaluation of viral virulence using old pig models. (a) Rectal temperature of pigs inoculated with different pseudorabies virus (PRV) strains or PBS at different days post inoculation. (b) The survival curve of experimental pigs inoculated with different PRV strains or PBS. (c) Detection of viral DNA in blood collected from pigs inoculated with different PRV strains at different days after inoculation by real-time quantitative PCR. (d) Detection of viral DNA in the nose and mouth swabs collected from pigs inoculated with different PRV strains at different days post inoculation by real-time quantitative PCR. (e) Detection of viral DNA in anal swabs collected from pigs inoculated with different PRV strains at different days after inoculation by real-time quantitative PCR. (f) Detection of viral DNA in different pig tissues by real-time quantitative PCR.

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