TRBV13 and COVID-19: Our analyses failed to find significant differences between individuals with active COVID-19 and sero(–) individuals in the representation of any of TRBV5-6, TRBV11-2, TRBV13, TRBV14, or TRBV24-1 genes that were collectively implicated in those studies (Fig. 3A and SI Appendix, Fig. S7).