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. Author manuscript; available in PMC: 2013 Oct 25.
Published in final edited form as: Virology. 2012 Jul 17;432(2):389–393. doi: 10.1016/j.virol.2012.06.018

Figure 3.

Figure 3

Ferrets’ virus titers in the upper respiratory tract (nasal washes) after infection with rg-A/Tennessee/560/09 (TN/09, open circles), rg-A/Tennessee/560/09-PA L295P mutant (PAmut, light gray squares), rg-A/Tennessee/560/09-HA K154Q mutant (HAmut, dark gray squares), and rg-A/Tennessee/560/09-HA K154Q mutant and PAL295P mutant (HAmutPAmut, black squares). Values are the mean ± SD for two ferrets (or three ferrets on days 1 and 2 post infection) and expressed as log10 PFU/ml. The limit of virus detection was 1 log10PFU/ml. For calculation of the mean, samples with a virus titer <1 log10PFU/ml were assigned a value of 0.