Th17 cell and γδ T cells have previously been described in the bladder (Sivick et al., 2010), but given the increase in Il17 and Il22 transcripts at early time points post infection, even in T cell-deficient mice, we sought to characterize bladder ILC3s, as previous reports had described only CD4+ ILC3 (Zychlinsky Scharff et al., 2019). This evidence concerns the gene CD4 and infection.