Kết quả tìm kiếm - O. V. Pyankov

Given the lack of specific antiviral medicines to treat dengue fever, finding new medicinal products, including natural products, remains a highly pertinent goal. The objective of the study was to determine the antiviral activity of Influcid against dengue virus replication in vitro. Material and me...

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The aim of the work was to study the features of the infectious process in the lungs of animals used as models for assessing SARS-CoV-2 pathogenicity.Materials and methods. The strain of SARS-CoV-2 alpha variant virus was used in the work. The experiments were carried out on linear and transgenic mi...

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Developed has been the oligonucleotide liquid biochip based on xMAP technology, designed for the laboratory detection of particularly dangerous viral pathogens such as Ebola and Marburg filoviruses, and Machupo , Junin, and Lassa arenaviruses. The suggested approach allows for the detection of up to...

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The aim of the research was to study reproduction features of SARS-CoV-2 coronavirus strains of various genetic lines on Vero and Vero E6 cell culture.Materials and methods. The SARS-CoV-2 virus strains related to the variants of concern (VOC) circulating in the territory of the Russian Federation w...

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The aim was to study the possibility of inducing Marburg-neutralizing chicken antibodies (MARV) using various immunogens.Materials and methods. Recombinant vaccinia virus expressing the surface glycoprotein (GP) transgene MARV of Musoke strain and pseudovirus particles exhibiting GP of three strains...

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) appear to be highly virulent for chickens. The chance of AFV infection of chickens in case of intranasal challenge is 20 times as great as in the case of peroral one, and 300 times as great as in the case of intragastral one, which bears evidence to higher sensitivity to AFV of the tissues of avia...

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Studied was dissemination of avian influenza virus (AIV) in the organism of chickens after intranasal challenge with 10-100 LD50. The primary organ of accumulation of AIV A/H5N1 (A/Chicken/Kurgan/05/2005strain) is the respiratory tract (nasal mucosa), where the virus is registered in 18 hours after...

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The aim of the research was to assess the susceptibility of mice of different lines to newly emerging variants of SARS-CoV-2.Materials and methods. The SARS-CoV-2 virus strains belonging to variants of concern (VOC) circulating in the territory of the Russian Federation were used in the study. Exper...

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By the experiments of in vivo intranasal infection of 8-10-days-old outbread ICR mice with Monkeypox virus (MPV) in a dose equal 3.83 lg FFU/specimen, investigated was dynamics of the virus accumulation within various organs, blood cells, and blood serum. In 2 days after infection MPV was detected i...

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of MPV after 7 days postinfection, applying peroral administration once within 24 hours (24 hours before infection and 7 days after infection of mouse with 60 µg/g of a preparation). Displayed is the feasibility of using 8–15-days-old ICR mice (body weight 9–11 g) as an animal model for evaluation o...

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The aim of the work was to study the pathogenicity of newly emerging variants of SARS-CoV-2 on the model of the Syrian golden hamster.Materials and methods. We used the strains of SARS-CoV-2 virus related to the VOC circulating in the territory of the Russian Federation. The experiments were carried...

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Studied is the sensitivity of different animal species (white mice, rabbits, mini-pigs, and marmots) to Monkeypox virus (MPXV). Determined is the fact that MPXV-sensitive are groundhogs (ID50 and LD50 5 lg of PFU in case of intranasal inoculation). The most pronounced clinical signs of the disease s...

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The review summarizes the main results of a five-year cooperation activities of the specialists from the Russian Federation and the Republic of Guinea in the fight against dangerous infectious diseases. From the very beginning of the Ebola virus disease epidemic in West Africa, Russia has been activ...

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Analysis of 5 Ebola virus Zaire 2014 isolates passaged in cell cultures or in mice, demonstrated presence of unique mutations in the genome RNA in some cases. All identified nucleotide substitutions are singular, stochastically located, synonymous or fall within non-coding regions. Variability level...

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The aim of the study was to create a highly immunogenic vaccine construct based on a recombinant variant of a replication-defective MVA strain of vaccinia virus, expressing virus-like particles that mimic natural infection with Marburg virus. Materials and methods. The recombinant virus was obtained...

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The aim of the work was to develop a kit for detection of IgM and IgG antibodies to Ebola virus in ELISA.Materials and methods. Ebola virus strain Zaire H.sapiens-wt/GIN/2015/Kalidie-Kindia-1022 grown on cell culture was used as antigen.Results and conclusions. The kit was used by the Rospotrebnadzo...

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) as framework for the production of tools for CCHF virus detection and identification in artificially contaminated samples and clinical specimens containing CCHF antigens was proven efficient.

Given is an account of the EVD epidemics that started in the Republic of Guinea in December, 2013 and spread over West African countries within 2014. Established have been the grounds for the Rospotrebnadzor SAET deployment in the Republic of Guinea, objectives, goals and stuffing of the mission, an...

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