[Persistent viruses in serological diagnosis of HIV infection].

Specific antibodies to persistent viruses (CMV, EBV, HBV) were detected by ELISA in groups of HIV-infected patients and persons showing indefinite results of the immunoblotting test for HIV-1 antigens, on the one hand, and in HIV-seronegative donors and patients with clinical manifestations of viral infection (CMVI) on the other. The findings indicate that the persons with indefinite immunoblotting test results show elevated blood CMV and HBV antigen levels than in the matched group of seronegative donors. This fact suggests that persistent viral infections might involve in the formation of an indefinite pattern when the sera were tested for HIV.

[A study of sera positive and doubtful for antibodies to the human immunodeficiency virus for the presence of HTLV-I-specific antibodies].

The results of examinations for the presence of antibody to HTLV-I of 205 sera which were positive or indefinite (doubtful) with regard to HIV are presented. No evidence indicating simultaneous infection with HIV and HTLV-I viruses in 18 HIV-positive subjects was obtained. Antibodies to gag-proteins p19 and p28 HTLV-I were detected in one serum showing primary reactivity in screening for HIV antibodies.