CD4 and infection: Here, we observed significantly increased N-hRSV and bRSV-specific CD4+ T cells and bRSV-specific CD8+ T cells in lung-draining TBLNs near the site of infection (Figures 4B, D), as well as increasing trends in peripheral blood of rBCG-N-hRSV-vaccinated calves at 7 dpi (Figure A,C).