Figure 5.
Detection of H7N1 matrix 1 protein in selected tissues of inoculated turkeys.
The maximum distribution of influenza A virus M1 protein 4 dpi in heart, lung and brain of turkeys inoculated with HP-NS224 (a, b, c), HP-NS230 (d, e, f) and HP-NSLP (g, h, i). Immunohistochemistry was done with the avidin-biotin-peroxidase-complex method, a primary monoclonal mouse antibody against influenza A virus matrix protein, 3-amino-9-ethylcarbazol (red-brown) as chromogen and haematoxylin (blue) as counterstain; Nomarski contrast; Bars = 50 µm.