Antibody responses against HHV8 lytic ORF65 and latent ORF73 antigens in six homosexual individuals, either HIV-infected (patients A and B), HIV seroconverters (patients C and D), or HIV-seronegative (patients D and E); dashed line, OD of ORF65; solid line, OD of ORF73; vertical, dashed line, KS diagnosis.