FIG. 6.

Immunogold labeling using MAbs reacting with the BRSV G protein (MAb G66; A, C, E) or with the HRSV G protein (MAb 021/1G; B, D, F). Labeling was performed on preparations of rBRSV (A, B), rBRSV/A2 (C, D), and HRSV Long (E, F). Bar, 150 nm.