Результаты поиска - Yu. Alekseev

Aim. The Black Sea region is one of the centers of diversity of bats in the Palearctic. In this regard, the main aim of the work was determined ‐ to study the species composition of the bat fauna of the Black Sea region and the distribution of bat species there. The aim becomes especially relevant i...

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The aim of the work was to describe the discovery of a pond bat Myotis dasycneme (Boie, 1825) in the vicinity of Zheleznovodsk, Stavropol Territory, Russia in August 2023.We examined the Letnei Merzloti Cave, an artificial tunnel about 400 metres long with small dead‐end caverns. The pond bat was fo...

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Aim. The work was to compile a list of bird species and their status in the forest-steppe and steppe of the Middle Irtysh region at the present time and to analyse their potential ability in terms of the transmission of influenza viruses that pose a danger to humans and farm animals.Materials and Me...

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The cave was surveyed and the animals were counted 1–2 times a month. Microclimatic indicators were recorded by automatic loggers.During the research, it was found that the place of hibernation of R. mehelyi in the north‐east of the area is the Karabudakhkentskaya Cave. The minimum, maximum and aver...

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The technology for obtaining of porous powder materials with frame structure on the basis of spherical particles of titanium powder, using application of technological coatings of Тi (Si+Мо), (Si+С) or (W+С) was developed. Formation of the powder with the coating was conducted in molding die under t...

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Aim. The aim of the work is to carry out an analysis of the wetlands of the Republic of Dagestan in order to justify the selection of the collecting sites for material from migratory aquatic and semi aquatic birds in order to monitor the influenza A virus.Material and methods. Studying scientific pu...

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Aim. Formulation of the outlines of the concept of ViEW (Viral Early Warning) which is intended as a long term system of multidisciplinary transboundary cooperation between specialist institutions of all five Caspian region states to research, regularly monitor and share data about the generation, t...

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Aim. To evaluate the possibility of herpes viruses circulation and possible routes of transmission in population of Steller sea lions of the Sea of Okhotsk by combining a thorough literature study with screening of blood sera samples of Steller sea lion puppies of the Sea of Okhotsk obtained in 2008...

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Aim. To investigate the mechanisms of variability of the influenza virus.Discussion. Influenza is one of the most significant problems facing the health care system. Human influenza causes a number of social and economic problems: mortality in high-risk groups, increasing in the load on personnel ag...

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Abstract. Aim. Marine mammals play the role of "sentries", standing guard over the health and functioning of marine ecosystems. The analysis of data reported in literature was carried out to understand and to evaluate a circulation of representatives of the Orthomyxoviridae and Paramyxovir...

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Aim. The aim of this review is a comprehensive analysis of current literature data on coronaviruses identified in bats.Discussion. Coronaviruses (Coronaviridae) constitute the most extensive family of viruses of the order Nidovirales. Coronaviruses have a wide range of hosts, including mammals (Alph...

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The evaluation of acute and chronic toxicity and local effect of the inactivated influenza vaccine Ultriks in animal models (guinea pigs, mice BALB/c) was performed. No vaccine-related toxic effect after a single intraperitoneal injection, multiple intramuscular injections, and no local irritant eff...

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Background. Studying the characteristics of the course of coronavirus infection caused by SARS-CoV-2 remains relevant due to the high mutagenicity of the virus and the prevalence of the disease in the world. The search for new drugs to eliminate clinical manifestations of COVID-19, as well as agains...

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Objective: isolation of coronavirus SARS-CoV-2 from clinical sample of patient with COVID-19 in Novosibirsk; obtaining a purified and inactivated viral antigen and study of its antigenic properties. Materials and methods: virus isolation was carried out in Vero cell culture from nasopharyngeal swab...

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Aim. The work is aimed at exploring the molecular and genetic properties of avian paramyxovirus 4 (APMV‐4) isolated from the mallard duck. Material and Methods. In 2018, as a part of an influenza A virus surveillance programme, biological samples were collected from wild birds on Lake Adzhi (Papas)...

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Early diagnosis of tuberculosis remains essential for the prevention of the disease and control of its incidence. The diagnosis of latent tuberculosis infection (LTBI) has significantly improved over the last years due to the use of new immunological tests, including the Diaskintest.The aim of the s...

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Objective. Analysis of environmental status Tyuleniy Island after a 25-year break in ecological and virological expeditions.Discussion. The paper presents the first results of the ecological and virological expedition to the Tyuleniy Island in August 2015 – the first after a 25 year break. Species o...

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Objective: to develop a new antigenic relevance influenza B virus suitable for modeling influenza infection in mice to assess of in vivo and in vitro therapeutic and preventive efficacy of antiviral drugs.Materials and methods: was carried out an adaptation of influenza B virus in BALB/c mice. Was p...

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