He was again tested negative for HIV infection a third time on 24 October 2013, when a new KS lesion was found in his back; HHV8 PCR was positive but lower than 125 genome equivalents/mL and CD4 cell count was 389 cells/mmc (39%, CD4/CD8 ratio 1.16). This evidence concerns the gene CD4 and Kaposi's sarcoma.