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. 2011 Jan 19;6(1):e14561. doi: 10.1371/journal.pone.0014561

Figure 7. H5N1 influenza infection increases iNOS expression at higher levels in chickens compared to ducks.

Figure 7

QRT-PCR was carried out on various tissues from chickens and ducks infected with H5N1 and compared to uninfected controls. Chicken samples were taken at 24 hours post infection, duck samples were taken at 72 hours post infection. Data represents the mean fold expression of either duck or chicken iNOS relative to each uninfected tissue type with GAPDH used as the housekeeping gene. Displayed values are the mean of 2 experiments with 4 birds in each group. Single asterisk indicates statistically significant differences of means with p<0.05, double asterisk indicates statistically significant differences of means with p<0.01.