Fig. 3.
Efficacy of oral preventive treatment with OM-85 on influenza infection. Reduction of the viral load particles in lung tissue on day 5 after infection, and of the bronchoalveolar lavage (BAL) neutrophil and the alveolar macrophages (AM) with increase of the NP-tetramer positive influenza-specific CD8+ T-cell proportion in BAL on day 10 * = p < 0.05; ** = p < 0.01