Viral titers and survival rate in vaccinated mice after lethal challenge with homologous H5N1 virus. (a-b) Lung viral titers determined at day 3 after virus challenge ( of 10 challenged mice). PBS and EBY100/pYD1 injected mice were used as controls. . (c-d) Survival rate of mice after virus challenge ( mice/group). Inactivated H5N1 vaccine administrated mice served as positive controls.
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