Figure 3From: An M2e-based synthetic peptide vaccine for influenza A virus confers heterosubtypic protection from lethal virus challengeHistopathological changes in the lungs of virus challenged mice. Immunized mice were challenged by PR8 (A and D), SwGD96 (B and E) and SwHLJ1(C and F) and lungs were collected for histopathological analysis 3 days post challenge (HE stain; bar = 50 um).The figure indicates the representative imagines of histopathological observations of M2e-MAP plus Freund immunized mice or Freund only.Back to article page