[INDUCTION OF EFFECTORS OF INNATE AND ADAPTIVE IMMUNITY IN THE PROCESS OF THERAPY OF TOPIC FORM OF RECOMBINANT INTERFERON- α2b DURING RESPIRATORY INFECTIONS IN PREGNANT].

AIM: Study immunologic phenotype of lymphocytes in the process of therapy of topic form of recombinant interferon-α2b during respiratory infections in pregnant. MATERIALS AND METHODS: 74 pregnant women from 14 weeks of gestation took part in the study, among them 55 - within 24 hours with symptoms of acute respiratory infection (ARI) of light and me- dium, severe course of infection, who do not need hospitalization. Group I - 34 pregnant womenwithARI receivingbasic therapywith human recombinant interferon-(α2b in gelform. Group II - 21 pregnant with ARI receiving only basic therapy. Control group had 19 pregnant women without signs of ARI. Relative content of principle lymphocyte subpopulations was studied by flow cytofluorimetry: CD3+, CD3+CD4+, CD3+CD8+, CD3-CD19+, CD3- CD16+56+, CD3-CD8+; immune regulatory indexwas calculated inblood within 24 hours from the onset of the disease and 8 - 10 days later. RESULTS: A disbalance of lymphocyte sub- populations was noted in pregnant women with light or medium severity course of acute respiratory infections, that was characterized by an increased content of CD3-CD16+56+ and CD3+CD8+, as well as a reduced content of CD3+ and CD3+CD8+. Inclusion of a topical form of recombinant interferon-α2b during the first days of development ofthe disease has a systemic effect on cell immunity and results in normalization of subpopulation compo- sition of blood lymphocytes that is characteristic for physiological course of pregnancy. CONCLUSION: Administration of topic form of recombinant interferon in pregnant with light or medium severity of ARI can be accompanied by activation of factors of innate and adaptive immunity.

[IS A THIRD DOSE OF MEASLES VACCINE NECESSARY - AN IMMUNOLOGIST'S VIEW].

Immunological aspects of features of post-vaccine immune response to measles virus are presented and causal relationships are detected, that lead to the disappearance of protective anti- bodies against measles virus, as one of the arguments for improvement of vaccination tactics with the aim to increase immune population and enhancement of epidemiologic situation regarding measles in general. At contemporary stage during mass vaccinations against measles a portion of seronegatives among women of reproductive age and newborns (up to 20.1%) with an additional increase of this parameter by 8 - 13% during pathologic course of pregnancy is established. At the age of 12 months portion of seronegatives among children with health deviations reaches 80 - 90.0% against 53.8% - in healthy. Revaccination of children with deviation of health is shown not to result in production of antibodies against measles virus at protective titers in 30.4 - 33.3% of cases, that could facilitate formation of risk groups for measles virus infection during unfavo- rable epidemic situations. A problem of possible introduction of a third dose of the measles vaccine. among the indicated population groups is discussed.