ABSTRACT
AIM: Isolation and study of molecular genetic characteristics of pandemic influenza virus A (H1N1) circulated in Amur region in autumn 2009 as well as testing of serum samples taken from citizens of this region during November- December 2009 in order to measure levels of antibodies to socially significant serotypes of influenza A virus. MATERIALS AND METHODS: Strain of pandemic influenza virus A/Blagoveschensk/01/2009 (H1N1) was isolated on MDCK cell culture and nucleotide sequences of all eight segments of viral genome were determined. Five hundred seventy-six serum samples taken in Amur region in autumn 2009 were tested by hemagglutination inhibition assay. RESULTS: Nucleotide sequence of A/Blagovechensk/01/2009 (H1N1) strain was 99.7% identical to reference influenza virus strain A/California/04/2009. Diagnostically significant titers of antibodies to pandemic influenza virus were observed in 46.3% of persons younger 30 years old and in 20.1% older persons. Antibodies to seasonal influenza virus H1N1 and H3N2 were detected in 39.5 and 29.8% of persons respectively. CONCLUSION: Final seroepidemiological picture of distribution of pandemic virus in Amur region matches with the one for seasonal influenza virus A (H1N1): > 60% of seropositive persons were registered in age group < 18 years old, and this proportion increases with increasing age.
Subject(s)
Antibodies, Viral/immunology , Influenza A Virus, H1N1 Subtype/genetics , Influenza A Virus, H1N1 Subtype/immunology , Influenza, Human/genetics , Influenza, Human/immunology , Animals , Antibodies, Viral/blood , Cell Line , Dogs , Humans , Influenza A Virus, H1N1 Subtype/isolation & purification , Influenza A Virus, H3N2 Subtype/genetics , Influenza A Virus, H3N2 Subtype/immunology , Influenza A Virus, H3N2 Subtype/isolation & purification , Influenza, Human/blood , Influenza, Human/epidemiology , Pandemics , Seasons , Seroepidemiologic Studies , Siberia/epidemiologyABSTRACT
Quantity of estrogen- and progesterone-specific binding sites was measured in endometrial tissues of 10 females treated with danazol during 3 month in a dose of 400 mg per day after surgical treatment for endometriosis. It was demonstrated that the amount of estrogen receptors in endometrium of the patients was the same as in endometrial tissue of healthy females but the quantity of nuclear progesterone receptors was markedly increased.