Unexpectedly, the higher early incidence of viral infections in the CD30 cohort did not appear to be related to lymphopenia: ALC both before CAR T and during lymphodepletion was notably low (median 0.7 × 109 cells/L for both time points; Table 1) and no significant differences were observed between infected and noninfected groups (Figure 2). Here, TNFRSF8 is linked to lymphopenia.