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. Author manuscript; available in PMC: 2018 Jan 8.
Published in final edited form as: Vaccine. 2015 Mar 3;33(37):4675–4682. doi: 10.1016/j.vaccine.2015.01.086

Fig. 2. Protective efficacy of immunization against H1N1 A/California/07/2009 lethal infection and analysis of lung viral titers.

Fig. 2

Body weight changes (A) and survival rates (B) were recorded after lethal challenge with 5xLD50 of A/California/07/2009 virus in young MN and IM immunized mice 2 weeks post immunization and naïve mice. Lung viral titers (C) were determined by plaque assay. INF: infected mice. Data represent the mean ± SD, *p < 0.05, **p < 0.005, ***p < 0.0001.