Additionally, we found that UV-G954-MeV and cycloheximide treatment prevented autophagosome accumulation in 24 hours G954-MeV-infected CD150-HeLa cells, indicating that, as for attenuated strains, neo-synthesized viral proteins are required for autophagy infection by a virulent MeV strain (Fig. 7F and S12). This evidence concerns the gene SLAMF1 and infection.