Blood samples were taken from individuals suffering from uncharacterized viral infection (n = 3), pneumonia (n = 1), cystitis (n = 2), nephritis (n = 1); (Cγ MFI mean: Vδ1bone marrow 2360 ± 188 SEM versus Vδ2bone marrow 1298 ± 99 SEM; Vδ1healthy 2533 ± 129 SEM versus Vδ2healthy 1711 ± 218SEM; Vδ1diseased 2606 ± 213SEM versus Vδ2 diseased 3986 ± 256 SEM) (Figure 10C). This evidence concerns the gene CTSG and susceptibility to pneumonia measurement.