[Postmortem detection of antibodies to human immunodeficiency virus].

The authors have demonstrated the possibility of detecting antibodies to HIV in cadaveric blood by enzyme immunoassay, agglutination tests, dot- and immune blotting tests with Russian and imported commercial test systems. The qualitative and quantitative results of anti-HIV antibody indication, as well as of HBsAg indication in the postmortem blood sera completely coincided with the findings of the life-time tests in seronegative and HIV-infected subjects, whatever the subject's age. These results evidence the possibility of postmortem serologic diagnosis of HIV infection and AIDS in cases with lethal outcomes, if the condition was not diagnosed in life time.

[Expert research on sera yielding false-positive results for HIV antibodies during screening].

The significance of different serological methods and assay systems for the verification of false positive cases of HIV infection has been analyzed on the basis of materials obtained in arbitration studies. As demonstrated by this analysis, the use of such highly specific and sensitive systems as Huma-Lab, Enzygnost, Serodia and Erythrorecombinant has made it possible to obtain a reliable result as early as at the first stage of expert diagnosis in the enzyme immunoassay and the agglutination test. The methods of radioimmunoprecipitation and indirect immunofluorescence have permitted a more precise differentiation of doubtful results than that achieved by immune blotting.

[The immunization of adults against respiratory syncytial virus infection].

The results of the comparative study of the immunological effectiveness of experimental samples of respiratory syncytial (RS) viral vaccine, prepared from a live attenuated strain and introduced in a single administration to young adults by the intranasal, intradermal and combined intranasal-intradermal) routes, are presented. The effectiveness of intranasal immunization was inversely related to the level of previously existing humoral (serum, secretory) antibodies. Intradermal immunization enhanced the frequency of the formation of serum antibodies in persons having had such antibodies before the introduction of RS vaccine.