Figure 1From: Heterogeneous pathological outcomes after experimental pH1N1 influenza infection in ferrets correlate with viral replication and host immune responses in the lungPulmonary histopathological lesions in pH1N1-infected ferrets at 4 dpi. Pictures show different severity of lesions in alveolar and bronchiolar areas for R11 and R61 viruses. HE and immunohistochemical staining for IAV antigen (40x objective field).Back to article page