CD206+ Cell Number Differentiates Influenza A (H1N1)pdm09 from Seasonal Influenza A Virus in Fatal Cases

Figure 4

CD4+ and CD14+ cells were highly recruited in the lung of fatal cases of influenza. Representative microphotography of CD8, Foxp3, CD4, and CD14 immunohistochemistry in lung tissue of noninfected, influenza A (H1N1)pdm09, and seasonal influenza (×40). No differences were found in CD8+ cells and Foxp3+ cells. High levels of CD4+ and CD14+ cells were found in lung of influenza groups.