S S Iamnikova

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The paper analyzes the results of isolation of Newcastle disease virus (NDV) strains from 336 swaps of 31 wild bird species collected in the 2001 summer in the Volga estuary (Astrakhan Region). Twenty-seven NDV strains were isolated from little terns (Sterna albifrons) (n=11; infection rate, 24.4%), great cormorants (Phalacrocorax carbo) (n=6; 11.1%), coots(More)
Pigs were intranasally infected with avian influenza A/H5 (H5N1, H5N3) and A/H4 (H4N6, H4N8) viruses in mono- and coinfection. Infection with both apathogenic and pathogenic strains caused no clinical manifestations. A virus and/or fragments of its genome retained in nasopharyngeal fluid as long as 6-8 days after infection. During monoinfection, the(More)
Analysis of the data of annual (1980-2005) monitorings of influenza A viruses in the North Caspian Sea basin and the Volga river delta, as well as the primary hemagglutinin structure of isolates of different years revealed the circulation of A/H13 and A/H16 viruses among gulls since 1976. Phylogenetic analysis revealed 3 significantly different evolutionary(More)
The ability of influenza viruses from different hosts to bind to the intestinal epithelium of various birds (Anseriformes (Anatidae), Galliformes, Charadriiformes (sandpipers and sea gulls), Ciconiiformes (storks), Podicipediformes (grebes), and Gruiformes was studied. The composition of sialo-containing receptors on the epithelia was examined, by using(More)
The affinity of the duck, chicken, and human influenza viruses to the host cell sialosides was determined, and considerable distinctions between duck and chicken viruses were found. Duck viruses bind to a wide range of sialosides, including the short-stem gangliosides. Most of the chicken viruses, like human ones, lose the ability to bind these(More)
The research results on ecology and evolution of influenza A viruses, which has been conducted by the Center of Ecology and Evolution of influenza Viruses of Ivanovsky's Institute of Virology, Russian Academy of Medical Sciences, for more than 30 years, are summarized in the paper. A gene pool of influenza A viruses circulating in Russia's territory was(More)
The effect of the antiviral drug arbidol on the reproduction of avian influenza A/H5 viruses was studied in in vitro experiments. The strains were isolated from the wild birds of Eastern Siberia and they were closely related to the 1997-2000 viruses from South-Eastern Asia. Arbidol was shown to exert a selective inhibiting effect on the reproduction of(More)
The genome of the NDV strain Sterna/Astrakhan/2755/2001 isolated from a wild bird of the Volga River delta in 2001 was completely sequenced. The phylogenetic analysis of the strain investigated and other NDV strains clearly demonstrated that Sterna/Astrakhan/2755/ 2001 belonged to the lineage 5b. Comparative analysis of molecular genetic markers of(More)
The paper presents the results of the 2003 and 2006 environmental virological monitoring surveys on the Malyi Zhemchuzhnyi Island where a large breeding colony of sea gull (Laridae) is located. In the past several years, expansion of cormorants (Phalacrocorax carbo) has enhanced the intensity of populational interactions. The investigators isolated 13(More)
The paper presents the results of molecular virological monitoring of Newcastle disease virus (NDV) by reverse-polymerase chain reaction (followed by sequence of F-gene fragment 374 p.n.) and chick embryo isolation of samples from the avian cloacal swabs collected in the south of the Primorye Territory in September-October 2001-2004. It shows that before(More)