Figure 4From: Protective efficacy of a broadly cross-reactive swine influenza DNA vaccine encoding M2e, cytotoxic T lymphocyte epitope and consensus H3 hemagglutininProtection of mice from homologous and heterologous challenges. Mice lung viral titers at day 3 after challenges were determined in eggs from an initial dilution of 1:10 in phosphate-buffered saline and expressed as EID50/ml. The limit of virus detection was 1.5log.Back to article page