KRT81 and Kaposi's sarcoma: We have analysed the expression profile of latent genes (ORF72 and ORF73) and lytic genes (K2, K8, K8.1, K10/K10.1, K10.5/K10.6 and ORF16) and found them all expressed in 57.1% of KS lesions while the remaining 42.9% lacked the expression of K8.1 and K10.5/K10.6.