Modelling the optimal target age group for seasonal influenza vaccination in Japan.

CONCLUSIONS: A vaccination programme which targets children under 15 is predicted to have much larger epidemiological impact than those targeting elderly. PMID: 31735503 [PubMed - as supplied by publisher]
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research

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Conclusions: Influenza A and B were equally prevalent. Patients had globally similar characteristics. Patients with influenza A virus infection were more often hospital-admitted and oseltamivir treated; however in-hospital and medium-term mortality rates were not significantly different. Influenza B virus infections can be just as severe as influenza A virus infections.
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Respiratory infections Source Type: research
Current challenges: from the path of "original antigenic sin" towards the development of universal flu vaccines. Int Rev Immunol. 2019 Nov 09;:1-16 Authors: Biswas A, Chakrabarti AK, Dutta S Abstract Annual flu led by influenza viruses is contemplated to be one of the foremost global health challenges due to its rapid spread leading to the life-threatening epidemic or pandemic. An enormous number of people die due to flu and its associated intricacies every year. Annual vaccination is considered to be the gold standard strategy to protect the individual from acquiring infection and further de...
Source: International Reviews of Immunology - Category: Allergy & Immunology Tags: Int Rev Immunol Source Type: research
In conclusion, NPs-based vaccines can serve as novel candidate vaccines against several porcine viral infections with the potential to enhance the broader protective efficacy under field conditions. This review highlights the recent developments in NPs-based vaccines against porcine viral pathogens and how the NPs-based vaccine delivery system induces innate and adaptive immune responses resulting in varied level of protective efficacy.
Source: Veterinary Research - Category: Veterinary Research Source Type: research
This study reports virological and epidemiological data accumulated through passive surveillance conducted during 1,825 herd visits from 2011 to 2018. Among them, 887 (48.6%) tested swIAV-positive. The proportion of positive cases remained stable year-on-year and year-round. The European avian-like swine H1N1 (H1avN1) virus was the most frequently identified (69.6%), and was widespread across the country. The European human-like reassortant swine H1N2 (H1huN2) virus accounted for 22.1% and was only identified in the north-western quarter and recently in the far north. The 2009 pandemic H1N1 (H1N1pdm) virus (3.6%) was detec...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
CONCLUSION: During consecutive influenza A/H3N2 epidemics, poor influenza vaccine effectiveness may be more pronounced among the elderly population with a high annual vaccine uptake rate. PMID: 31690467 [PubMed - as supplied by publisher]
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
AbstractThe review covers three independent blocks of research. The first one is discovery, isolation, and investigation of snake venom RNases and their use in studying RNA macrostructure. It has been established that snake venom RNases are not specific to the primary RNA structure but rather to the RNA helical conformation (double, single, or hybrid helix). Snake venom RNases hydrolyze RNA to short oligomers with the 5 ′-terminal phosphate. Analysis of the kinetics and products of tRNA hydrolysis exemplifies the use of snake venom RNases for deciphering RNA macrostructure. The second block is devoted to the principl...
Source: Biochemistry (Moscow) - Category: Biochemistry Source Type: research
ConclusionWhen applying quadrivalent influenza vaccines (QIVs) for vaccination, the recommendations of compositions for influenza B could be altered and assessed once in 3 or 4  years; when economic burden was considered intensively and TIVs were utilized, the recommended compositions for influenza B could be announced in April or May, rather than in February or March as now.
Source: Antimicrobial Resistance and Infection Control - Category: Infectious Diseases Source Type: research
This study provides canine microRNA responses to seasonal influenza B viruses, suggesting that virus-mediated microRNAs might play crucial roles in host gene regulation.
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
This study seeks to define the level of antihemagglutinin antibodies, using the hemagglutination inhibition assay (HAI), in the serum of patients, stratified into seven age groups, in Poland during the influenza epidemic season of 2017/18. A quadrivalent influenza vaccine has been introduced in Poland as of this epidemic season, making it possible for the first time to conduct the analysis for four antigens: A/Michigan/45/2015 (H1N1) pdm09, A/Hong Kong/4801/2014 (H3N2), B/Brisbane/60/2008 - Victoria lineage, and B/Phuket/3073/2013 - Yamagata lineage. We found that the level of individual antihemagglutinin antibodies was di...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Influenza viruses cause hundreds of thousands of respiratory diseases worldwide each year, and vaccination is considered the most effective approach for preventing influenza annual epidemics or pandemics. Sinc...
Source: Journal of Biological Engineering - Category: Biotechnology Authors: Tags: Research Source Type: research
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