Fig. 4From: Major contribution of the RNA-binding domain of NS1 in the pathogenicity and replication potential of an avian H7N1 influenza virus in chickensSubcellular distribution of NS1 in virus-infected CLEC213 cells. CLEC213 cells were mock-infected or infected with the indicated viruses (0.5 PFU/cell), then fixed and immunostained with an NS1-specific rabbit antiserum at 12Â h or 24Â h p.i. Images in the top and middle panels are from the same selected fields (middle panel shows the DAPI-stained nuclei at 12Â h p.i.)Back to article page