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. 2016 Jun 10;14:43. doi: 10.1186/s12951-016-0200-2

Fig. 5.

Fig. 5

PapMV nanoparticles protect mice from an influenza virus challenge from day 10 post-immunization. Vaccinated mice were challenged with a lethal dose of influenza virus [A/WSN/33 (H1N1)] at different time points; 5 (a), 7 (b) 10 (c), (d) 14 days post-immunization. Mice were euthanized when their weight was equal to, or lower than, 20 % of their initial weight. Kaplan–Meier survival curves were analysed by the log rank test (**p < 0.01)