@amgoblue @Birdsfan82 $INO This is Moderna They got CD4 T cell, although I am not sure Th1 or TH2 matters. They do not have CD8 even after the second shot at 100ug group. The CD8 T cell (often called cytotoxic T lymphocytes) are very important for immune defence against pathogens, including viruses. INO got both, which is clearly better. I will check for PFE