Fig. 4: A(H1N1)pdm09 virus titers in the respiratory organs of infected mice.
From: Characterization of A(H1N1)pdm09 influenza viruses isolated between 2016 and 2019
(A, B) A(H1N1)pdm09 virus titers in the respiratory organs of infected mice (four mice per group) at 3 (A) and 6 (B) dpi. Each viral strain was intranasally administered to mice at a dose of 105 PFU. At 3 and 6 dpi, organs from the mice were collected, and a plaque assay was used to quantify the virus titer. Asterisks indicate statistically significant differences in viral titers compared to Cal04/2009 (P < 0.05). The full results of the statistical analysis are available in the Supplementary Table S4. The limit of detection (LOD) for the plaque test is shown by the dashed black line at the concentration of 1 × 101 PFU/g.
