Figure 4

Immunoreactive uptake in gills of formalin-inactivated VERv immersed sea bass with mAb 4C3 (A, B) and pAb 283 (C, D, E). A Gill epithelium showing the presence of immunoreactivity employing mAb 4C3 (arrow). Scale bar = 10 μm. B Negative control showing the absence of immunoreactivity in gill tissue with mAb 4C3. Scale bar = 10 μm. C Gill epithelium showing the presence of immunoreactivity using pAb 283. Scale bar = 50 μm. D Higher magnification of immunoreactivity with pAb 283 (arrow). Scale bar = 20 μm. E Negative control showing the absence of immunoreactivity in gill tissue with pAb 283. Scale bar = 50 μm. F: filament, L: lamella.