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Wyszukujesz frazę "influenza vaccine" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Influenza virus hemagglutinin as a vaccine antigen produced in bacteria
Autorzy:
Sączyńska, Violetta
Powiązania:
https://bibliotekanauki.pl/articles/1039263.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
recombinant influenza hemagglutinin
recombinant influenza vaccine
subunit influenza vaccine
bacterial hemagglutinin
prokaryotic protein production
Opis:
Recombinant subunit vaccines based on hemagglutinin proteins produced in bacteria (bacterial HAs) are promising candidates for enhancing the supply of vaccines against influenza, especially for a pandemic. Over 20 years after the failure to obtain the antigen with native HA characteristics in the early 1980’s, there are increasing data on successful production of HA proteins in bacteria. The vast majority of bacterial HAs have been based on the HA1 subunit of HA expressed separately or as a component of conjugate vaccines, but those based on the ectodomain and the HA2 subunit have also been reported. The most of HAs have been efficiently expressed as insoluble aggregates called inclusion bodies. Refolded and purified proteins were extensively studied for structure, the ability to bind to sialic acid-containing receptors, antigenicity, immunogenicity and efficacy. The results from these studies contradict the view that glycosylation determines the correct structure of the hemagglutinin, as they proved that bacterial HAs can be valuable vaccine antigens when appropriate folding and purification methods are applied to rationally designed proteins. The best evidence for success in bacterial production of protective HA is that vaccines based on proprietary Toll-like Receptor (VaxInnate) and bacteriophage Qβ-VLPs (Cytos Biotechnology) technologies have been advanced to clinical studies.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 561-572
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the knowledge, attitudes and behavior of healthcare workers concerning influenza vaccination in a training and research hospital in Türkiye
Autorzy:
Apaydin, Mehmet
Dogan, Serap
Aypak, Cenk
Powiązania:
https://bibliotekanauki.pl/articles/40570856.pdf
Data publikacji:
2024-06-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
attitude
behavior
healthcare workers
influenza vaccine
knowledge
Opis:
Introduction and aim. Although increasing vaccination rates among healthcare workers (HCWs) is crucial for protecting their own health and preventing the spread of infections to patients, vaccination rates remain low. The purpose of this study is to evaluate the knowledge, attitudes, and behavior of healthcare workers concerning seasonal influenza vaccination in a training and research hospital in Türkiye. Material and methods. This cross-sectional descriptive study was conducted among 364 healthcare workers working in a training and research hospital in Ankara, Türkiye. A face-to-face questionnaire was completed by selected participants that included questions about their sociodemographic characteristics, receiving seasonal influenza vaccination, reasons for not receiving vaccination, attitudes and behavior towards seasonal influenza vaccination recommendations for their surroundings, knowledge of who should get the vaccine, and their immunization history. Results. Among the participants, 58.5% stated that they had never received an influenza vaccination, 35.7% mentioned not receiving the regular influenza vaccination, and only 5.8% reported receiving the influenza vaccination regularly every year. Reasons for not getting vaccinated included not trusting the influenza vaccine’s protection (60.1%), not believing they are in the risk group (38.9%), and not finding a suitable time to get vaccinated (36.1%). A total of 57.1% of the healthcare workers recommended the influenza vaccine for their surroundings. Conclusion. Influenza vaccination rates among healthcare workers are quite low. To maximize influenza vaccine uptake, awareness programs are needed to correct the misconceptions health care workers have about the vaccine, and diverse strategies should be implemented to encourage them to get vaccinated, thereby promoting influenza vaccination.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 313-319
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A universal flu vaccine
Autorzy:
Kesik-Brodacka, Malgorzata
Plucienniczak, Grazyna
Powiązania:
https://bibliotekanauki.pl/articles/1039259.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
universal vaccine
flu vaccine
influenza virus
Opis:
Influenza is a global health concern. The single most effective way of protecting people against influenza infection and disease is vaccination. However, currently available vaccines against influenza induce only strain-specific immunity, and do not elicit long-lasting serum antibody titers. Therefore, they are ineffective in the case of possible pandemics. There is an urgent need for a new generation vaccine which would induce broad and long-lasting immune protection against antigenically distinct flu viruses. The paper presents recent achievements and the challenges in the field of universal vaccine construction.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 523-530
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DNA vaccines against influenza
Autorzy:
Stachyra, Anna
Góra-Sochacka, Anna
Sirko, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1039258.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
DNA vaccine
influenza
hemagglutinin
immunization
adjuvant
cross-protection
Opis:
Genetic vaccine technology has been considerably developed within the last two decades. This cost effective and promising strategy can be applied for therapy of cancers and for curing allergy, chronic and infectious diseases, such as a seasonal and pandemic influenza. Despite numerous advantages, several limitations of this technology reduce its performance and can retard its commercial exploitation in humans and its veterinary applications. Inefficient delivery of the DNA vaccine into cells of immunized individuals results in low intracellular supply of suitable expression cassettes encoding an antigen, in its low expression level and, in turn, in reduced immune responses against the antigen. Improvement of DNA delivery into the host cells might significantly increase effectiveness of the DNA vaccine. A vast array of innovative methods and various experimental strategies have been applied in order to enhance the effectiveness of DNA vaccines. They include various strategies improving DNA delivery as well as expression and immunogenic potential of the proteins encoded by the DNA vaccines. Researchers focusing on DNA vaccines against influenza have applied many of these strategies. Recent examples of the most successful modern approaches are discussed in this review.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 515-522
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antibody response to DNA vaccine against H5N1 avian influenza virus in broilers immunized according to three schedules
Autorzy:
Stachyra, Anna
Góra-Sochacka, Anna
Zagórski-Ostoja, Włodzimierz
Król, Ewelina
Sirko, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1039267.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Avian influenza
H5N1
DNA vaccine
broilers
Opis:
Broiler type chickens were immunized intramuscularly with a DNA vaccine encoding hemagglutinin (HA) from H5N1 avian influenza virus. The chickens were divided into four groups: control group which was not immunized, a group which obtained only one dose, and two groups which were immunized twice, one group with a boost two weeks after the priming and the other four weeks. Blood samples were collected at several time points and the dynamics of the humoral response to the vaccine was studied. High level of anti-HA antibodies was detected only in the last two groups, that is in chickens immunized according to the prime-boost strategy, regardless of the schedule. An additional interesting observation of this study was detection of the cross-reactivity of an anti-H5 HA positive serum with H5N2 and H1N1 viruses, suggesting that the DNA vaccine tested can induce antibodies of a broad specificity.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 593-596
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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