Global influenza strategy 2019-2030

This strategy aims to protect people in all countries from the threat of influenza. The goal of the strategy is to prevent seasonal influenza, control the spread of influenza from animals to humans, and prepare for the next influenza pandemic.
Source: Current Awareness Service for Health (CASH) - Category: Consumer Health News Source Type: news

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Emergence and re-emergence of respiratory virus infections represent a significant threat to global public health, as they occur seasonally and less frequently (such in the case of influenza virus) as pandemic infections. Some of these viruses have been in the human population for centuries and others had recently emerged as a public health problem. Influenza viruses have been affecting the human population for a long time now; however, their ability to rapidly evolve through antigenic drift and antigenic shift causes the emergence of new strains. A recent example of these events is the avian-origin H7N9 influenza virus ou...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Background: A/H5N1 influenza virus has significant pandemic potential, and vaccination is the main prophylactic measure. This phase 2, randomized, observer-blind, multicenter study evaluated the safety and immunogenicity of two MF59-adjuvanted, cell culture-derived H5N1 (aH5N1c) vaccine formulations in healthy pediatric subjects 6 months to 17 years old. Methods: Subjects (N = 662) received 2 aH5N1c doses 3 weeks apart, containing either 7.5 μg (full dose) or 3.75 μg (half dose) hemagglutinin antigen per dose. Local reactions and adverse events (AEs) were assessed by age. Antibody responses were measured by hema...
Source: The Pediatric Infectious Disease Journal - Category: Infectious Diseases Tags: Vaccine Reports Source Type: research
Abstract Swine are reservoirs for anthropogenic/zoonotic influenza viruses, and the prevalence and repeated introduction of the 2009 H1N1 pandemic influenza virus (pdm/09) into pigs raises the possibility of generating novel swine influenza viruses with the potential to infect humans. However, studies aiming to identify miRNAs involved in the transfer of novel swine influenza virus infection to human cells are rare. In this investigation, from the view of small RNA, microarrays and high-throughput sequencing were used to detect differentially expressed miRNAs and mRNAs after human lung epithelial cells were infect...
Source: Infection, Genetics and Evolution - Category: Genetics & Stem Cells Authors: Tags: Infect Genet Evol Source Type: research
Publication date: Available online 12 June 2019Source: EpidemicsAuthor(s): Timothy C. Germann, Hongjiang Gao, Manoj Gambhir, Andrew Plummer, Matthew Biggerstaff, Carrie Reed, Amra UzicaninAbstractWe used individual-based computer simulation models at community, regional and national levels to evaluate the likely impact of coordinated pre-emptive school dismissal policies during an influenza pandemic. Such policies involve three key decisions: when, over what geographical scale, and how long to keep schools closed. Our evaluation includes uncertainty and sensitivity analyses, as well as model output uncertainties arising fr...
Source: Epidemics - Category: Epidemiology Source Type: research
Authors: Mammas IN, Theodoridou M, Thiagarajan P, Melidou A, Papaioannou G, Korovessi P, Koutsaftiki C, Papatheodoropoulou A, Calachanis M, Dalianis T, Spandidos DA Abstract This year marks the 100th anniversary of the 1918 Spanish flu outbreak on the Greek Aegean Sea island of Skyros, which devastated its population in less than 30 days. According to Constantinos Faltaits's annals published in 1919, the influenza attack on the island of Skyros commenced acutely 'like a thunderbolt' on the 27th of October, 1918 and was exceptionally severe and fatal. At that time, the viral cause of the influenza had not been detec...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
In conclusion, we have established reverse genetics to generate a qualified reassortant H5N2 vaccine virus for further development.
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
Abstract Influenza A viruses, as causative agents of seasonal epidemics and periodic worldwide pandemics, cause enormous mortality loss globally. The PR8 strain cultured in chicken eggs is widely used for scientific research and the production of influenza vaccines. Here, based on Cryo-electron Tomography (CET), we analyzed the morphological and structural characteristics of the influenza virus PR8 strain at different pHs. We found that a large number of defective virions were propagated in embryonated eggs. By comparing virions with/without the matrix layer, it was revealed that the matrix layer played an essenti...
Source: Biochemical and Biophysical Research communications - Category: Biochemistry Authors: Tags: Biochem Biophys Res Commun Source Type: research
Abstract Single-chain variable fragment (scFv) has great prospect in medical therapies and diagnostic applications due to its binding affinity and low immunogenicity. However, the application of scFv is limited by its heterologous expression facing challenges of insoluble aggregation. sfGFP has been developed as fusion tag to facilitate the solubility of fusion partner in Escherichia coli. We designed fusion protein of anti-influenza PB2 scFv at C-terminus of sfGFP and successfully obtained soluble expression of sfGFP-scFv-His in Escherichia coli. The expression level of sfGFP-scFv-His reached at 20 mg/L of b...
Source: Applied Microbiology and Biotechnology - Category: Microbiology Authors: Tags: Appl Microbiol Biotechnol Source Type: research
ConclusionBased on high seroprevalence of antibodies against H1N1 virus during pandemic, vaccination of general population is not recommended. However, high-risk groups and HCWs need to be protected with flu vaccine. There is a need to encourage HCWs for accepting vaccination.
Source: Medical Journal Armed Forces India - Category: General Medicine Source Type: research
AbstractInfluenza infection is common worldwide with many individuals affected each year during epidemics and occasionally pandemics. Previous studies in animal models and a few human cases have established an important role of innate type I and III interferon (IFN) for viral elimination and mounting of antiviral responses. However, genetic and immunological determinants of very severe disseminated influenza  virus infection in humans remain incompletely understood. Here, we describe an adult patient with severe influenza virus A (IAV) infection, in whom we identified a rare variant E331V in IFN regulatory factor...
Source: Medical Microbiology and Immunology - Category: Microbiology Source Type: research
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