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Elderly and influenza

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https://www.readbyqxmd.com/read/29324996/laboratory-confirmed-respiratory-infections-as-predictors-of-hospital-admission-for-myocardial-infarction-and-stroke-time-series-analysis-of-english-data-for-2004-2015
#1
R M Blackburn, H Zhao, R Pebody, A C Hayward, C Warren-Gash
Background: Acute respiratory infections are associated with increased risk of myocardial infarction (MI) and stroke, however, the role of different organisms is poorly characterised. Methods: We undertook a time-series analysis of English hospital admissions for MI and stroke (age-stratified: 45-64, 65-74, 75+ years), laboratory-confirmed viral respiratory infections and environmental data for 2004-2015. Weekly counts of admissions were modelled using multivariable Poisson regression with weekly counts of respiratory viruses (influenza, parainfluenza, rhinovirus, respiratory syncytial virus (RSV), adenovirus or human meta-pneumovirus (HMPV)) investigated as predictors...
January 6, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29304825/bacterial-ribonuclease-binase-exerts-an-intra-cellular-anti-viral-mode-of-action-targeting-viral-rnas-in-influenza-a-virus-infected-mdck-ii-cells
#2
Raihan Shah Mahmud, Ahmed Mostafa, Christin Müller, Pumaree Kanrai, Vera Ulyanova, Yulia Sokurenko, Julia Dzieciolowski, Irina Kuznetsova, Olga Ilinskaya, Stephan Pleschka
BACKGROUND: Influenza is a severe contagious disease especially in children, elderly and immunocompromised patients. Beside vaccination, the discovery of new anti-viral agents represents an important strategy to encounter seasonal and pandemic influenza A virus (IAV) strains. The bacterial extra-cellular ribonuclease binase is a well-studied RNase from Bacillus pumilus. Treatment with binase was shown to improve survival of laboratory animals infected with different RNA viruses. Although binase reduced IAV titer in vitro and in vivo, the mode of action (MOA) of binase against IAV at the molecular level has yet not been studied in depth and remains elusive...
January 5, 2018: Virology Journal
https://www.readbyqxmd.com/read/29303744/elderly-at-risk-as-severe-influenza-season-looms-large
#3
EDITORIAL
The Lancet Respiratory Medicine
No abstract text is available yet for this article.
January 2018: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29299891/the-korean-influenza-national-immunization-program-history-and-present-status
#4
REVIEW
Jae Won Yun, Ji Yun Noh, Joon Young Song, Chaemin Chun, Yunju Kim, Hee Jin Cheong
The Korean influenza national immunization program was first established as an interim program in 1997, administering the influenza vaccine to low-income elderly adults. In 2005, the program assumed its present form of providing free influenza vaccination to adults aged ≥65 years. After turning over the influenza vaccination for elderly adults to the private sectors in 2015, the influenza vaccination coverage rate among this population increased to >80%. In addition, after the 2009 H1N1 influenza epidemic crisis, the vaccine was domestically produced...
December 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/29297746/influenza-vaccines-evaluation-of-the-safety-profile
#5
Claudia Maria Trombetta, Elena Gianchecchi, Emanuele Montomoli
The safety of vaccines is a critical factor in maintaining public trust in national vaccination programs. Vaccines are recommended for children, adults and elderly subjects and have to meet higher safety standards, since they are administered to healthy subjects, mainly healthy children. Although vaccines are strictly monitored before authorization, the possibility of adverse events and/or rare adverse events cannot be totally eliminated. Two main types of influenza vaccines are currently available: parenteral inactivated influenza vaccines and intranasal live attenuated vaccines...
January 3, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29259264/skin-immunization-by-microneedle-patch-overcomes-statin-induced-suppression-of-immune-responses-to-influenza-vaccine
#6
Elena V Vassilieva, Shelly Wang, Song Li, Mark R Prausnitz, Richard W Compans
Recent studies indicated that in elderly individuals, statin therapy is associated with a reduced response to influenza vaccination. The present study was designed to determine effects on the immune response to influenza vaccination induced by statin administration in a mouse model, and investigate potential approaches to improve the outcome of vaccination on the background of statin therapy. We fed middle aged BALB/c mice a high fat "western" diet (WD) alone or supplemented with atorvastatin (AT) for 14 weeks, and control mice were fed with the regular rodent diet...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29232932/adjuvant-probiotics-and-the-intestinal-microbiome-enhancing-vaccines-and-immunotherapy-outcomes
#7
REVIEW
Luis Vitetta, Emma Tali Saltzman, Michael Thomsen, Tessa Nikov, Sean Hall
Immune defence against pathogenic agents comprises the basic premise for the administration of vaccines. Vaccinations have hence prevented millions of infectious illnesses, hospitalizations and mortality. Acquired immunity comprises antibody and cell mediated responses and is characterized by its specificity and memory. Along a similar congruent yet diverse mode of disease prevention, the human host has negotiated from in utero and at birth with the intestinal commensal bacterial cohort to maintain local homeostasis in order to achieve immunological tolerance in the new born...
December 11, 2017: Vaccines
https://www.readbyqxmd.com/read/29232151/adjuvanted-influenza-vaccines
#8
John S Tregoning, Ryan F Russell, Ekaterina Kinnear
In spite of current influenza vaccines being immunogenic, evolution of the influenza virus can reduce efficacy and so influenza remains a major threat to public health. One approach to improve influenza vaccines is to include adjuvants; substances that boost the immune response. Adjuvants are particularly beneficial for influenza vaccines administered during a pandemic when a rapid response is required or for use in patients with impaired immune responses, such as infants and the elderly. This review outlines the current use of adjuvants in human influenza vaccines, including what they are, why they are used and what is known of their mechanism of action...
December 12, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29230484/-vaccination-in-advanced-age
#9
REVIEW
H J Heppner, A Leischker, P Wutzler, A Kwetkat
Infectious diseases are responsible for up to 5% of fatalities even in developed countries. In addition, there is an increasing susceptibility for infections in elderly people due to physiological aging of the immune system. The principles of vaccination are based on a targeted activation of the human immune system. Principally, a distinction is made between passive immunization, i.e. the application of specific antibodies against a pathogen and active immunization. In active immunization, i.e. vaccination, weakened (attenuated) or dead pathogens or components of pathogens (antigens) are administered...
December 11, 2017: Der Internist
https://www.readbyqxmd.com/read/29212934/influenza-a-virus-reassortment-is-limited-by-anatomical-compartmentalization-following-co-infection-via-distinct-routes
#10
Mathilde Richard, Sander Herfst, Hui Tao, Nathan T Jacobs, Anice C Lowen
Exchange of gene segments through reassortment is a major feature of influenza A virus evolution and frequently contributes to the emergence of novel epidemic, pandemic and zoonotic strains. It has long been evident that viral diversification through reassortment is constrained by genetic incompatibility between divergent parental viruses. In contrast, the role of virus-extrinsic factors in determining the likelihood of reassortment has remained unclear. To evaluate the impact of such factors in the absence of confounding effects of segment mismatch, we previously reported an approach in which reassortment between wild-type (wt) and genetically tagged variant (var) viruses of the same strain is measured...
December 6, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29212467/excess-pneumonia-and-influenza-mortality-attributable-to-seasonal-influenza-in-subtropical-shanghai-china
#11
Xinchun Yu, Chunfang Wang, Tao Chen, Wenyi Zhang, Huiting Yu, Yuelong Shu, Wenbiao Hu, Xiling Wang
BACKGROUND: Disease burden attributable to influenza is substantial in subtropical regions. Our study aims to estimate excess pneumonia and influenza (P&I) mortality associated with influenza by subtypes/lineages in Shanghai, China, 2010-2015. METHODS: Quasi-Poisson regression models were fitted to weekly numbers of deaths from causes coded as P&I for Shanghai general and registered population. Three proxies for influenza activity were respectively used as an explanatory variable...
December 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29205865/estimated-incidence-of-influenza-associated-severe-acute-respiratory-infections-in-indonesia-2013-2016
#12
Ni K Susilarini, Edy Haryanto, Catharina Y Praptiningsih, Amalya Mangiri, Natalie Kipuw, Irmawati Tarya, Roselinda Rusli, Gestafiana Sumardi, Endang Widuri, Masri M Sembiring, Widya Noviyanti, Christina Widaningrum, Kathryn E Lafond, Gina Samaan, Vivi Setiawaty
BACKGROUND: Indonesia's hospital-based Severe Acute Respiratory Infection (SARI) surveillance system, Surveilans Infeksi Saluran Pernafasan Akut Berat Indonesia (SIBI), was established in 2013. While respiratory illnesses such as SARI pose a significant problem, there are limited incidence-based data on influenza disease burden in Indonesia. This study aimed to estimate the incidence of influenza-associated SARI in Indonesia during 2013-2016 at three existing SIBI surveillance sites. METHODS: From May 2013 to April 2016, inpatients from sentinel hospitals in three districts of Indonesia (Gunung Kidul, Balikpapan, Deli Serdang) were screened for SARI...
December 5, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29202715/epidemiology-of-influenza-in-west-africa-after-the-2009-influenza-a-h1n1-pandemic-2010-2012
#13
Ndahwouh Talla Nzussouo, Jazmin Duque, Adebayo Abel Adedeji, Daouda Coulibaly, Samba Sow, Zekiba Tarnagda, Issaka Maman, Adamou Lagare, Sonia Makaya, Mohamed Brahim Elkory, Herve Kadjo Adje, Paul Alhassan Shilo, Boubou Tamboura, Assana Cisse, Kossi Badziklou, Halima Boubacar Maïnassara, Ahmed Ould Bara, Adama Mamby Keita, Thelma Williams, Ann Moen, Marc-Alain Widdowson, Meredith McMorrow
BACKGROUND: Over the last decade, capacity for influenza surveillance and research in West Africa has strengthened. Data from these surveillance systems showed influenza A(H1N1)pdm09 circulated in West Africa later than in other regions of the continent. METHODS: We contacted 11 West African countries to collect information about their influenza surveillance systems (number of sites, type of surveillance, sampling strategy, populations sampled, case definitions used, number of specimens collected and number of specimens positive for influenza viruses) for the time period January 2010 through December 2012...
December 4, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29201101/interfering-with-lipid-raft-association-a-mechanism-to-control-influenza-virus-infection-by-sambucus-nigra
#14
Shahla Shahsavandi, Mohammad Majid Ebrahimi, Ameneh Hasaninejad Farahani
Sambucus nigra (elder) are broadly used species to treat microbial infections. The potential antiviral activity and mechanism action of elder fruit (EF) in human epithelium cell (A549) cultures infected with H9N2 influenza virus were determined. The effect of various concentrations of EF on influenza virus replication was examined by using virus titration, quantitative real time RT-PCR, fusion and lipid raft assays following two treatment procedures: A) pre-treated H9N2 virus with each concentration of EF extract and transfection of A549 cell cultures, and B) each concentrations of EF was added to H9N2 virus infected-cell cultures following virus adsorption...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29199437/-safety-data-of-the-new-reduced-dose-influenza-vaccine-fluart-after-its-first-season-on-the-market
#15
Péter Vajó, Orsolya Gyurján, Ágnes Mira Szabó, László Kalabay, Zoltán Vajó, Péter Torzsa
INTRODUCTION: The currently licensed seasonal influenza vaccines contain split, subunit or whole virions, typically in amounts of 15 µg hemagglutinin per virus strain for adult and up to 60 µg in elderly patients. AIM: The present study reports safety data of the newly licensed, reduced dose vaccine with 6 µg of hemagglutinin per strain produced by Fluart (Hungary) after its first season on the market. The main objective of enhanced safety surveillance was to detect a potential increase in reactogenicity and allergic events that is intrinsic to the product in near real-time in the earliest vaccinated cohorts...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29194539/a-10-year-review-of-health-care-reform-on-family-practice-integrated-care-project-taiwan-experience
#16
Chyi-Feng Jan, Tai-Yuan Chiu, Ching-Yu Chen, Fei-Ran Guo, Meng-Chih Lee
Objective: Taiwan has launched a Family Practice Integrated Care Project (FPICP) to develop an accountable family doctor system since March 2003. We aim to report the effectiveness of this nationwide demonstration programme over a 10-year period. Methods: Papers and reports related to the FPICP published both in English and in Chinese from 2003 to 2015 were collected systematically based on keywords including 'family doctor', 'primary care', 'integrated care' and 'Taiwan'...
November 29, 2017: Family Practice
https://www.readbyqxmd.com/read/29186159/predictors-of-seasonal-influenza-vaccination-among-older-adults-in-thailand
#17
Prabda Praphasiri, Darunee Ditsungnoen, Supakit Sirilak, Jarawee Rattanayot, Peera Areerat, Fatimah S Dawood, Kim A Lindblade
BACKGROUND: In advance of a large influenza vaccine effectiveness (VE) cohort study among older adults in Thailand, we conducted a population-based, cross-sectional survey to measure vaccine coverage and identify factors associated with influenza vaccination among older Thai adults that could bias measures of vaccine effectiveness. METHOD: We selected adults ≥65 years using a two-stage, stratified, cluster sampling design. Functional status was assessed using the 10-point Vulnerable Elders Survey (VES); scores ≥3 indicated vulnerability...
2017: PloS One
https://www.readbyqxmd.com/read/29181006/protective-effect-of-panax-notoginseng-root-water-extract-against-influenza-a-virus-infection-by-enhancing-antiviral-interferon-mediated-immune-responses-and-natural-killer-cell-activity
#18
Jang-Gi Choi, Young-Hee Jin, Heeeun Lee, Tae Woo Oh, Nam-Hui Yim, Won-Kyung Cho, Jin Yeul Ma
Influenza is an acute respiratory illness caused by the influenza A virus, which causes economic losses and social disruption mainly by increasing hospitalization and mortality rates among the elderly and people with chronic diseases. Influenza vaccines are the most effective means of preventing seasonal influenza, but can be completely ineffective if there is an antigenic mismatch between the seasonal vaccine virus and the virus circulating in the community. In addition, influenza viruses resistant to antiviral drugs are emerging worldwide...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29179984/prevalence-of-antibodies-and-humoral-response-after-seasonal-trivalent-vaccination-against-influenza-b-lineages-in-an-elderly-population-of-spain
#19
Ivan Sanz Muñoz, Silvia Rojo Rello, Raúl Ortiz de Lejarazu
INTRODUCTION: The aim of this study was to analyze the presence of antibodies against both Yamagata and Victoria influenza B lineages and to check the response after seasonal trivalent vaccination. MATERIALS AND METHODS: Haemagglutination inhibition assays were performed with pre-and post-vaccination serum samples from 174 individuals ≥65 years of age vaccinated with seasonal trivalent influenza vaccines during the 2006-2007, 2008-2009, 2009-2010 and 2010-2011 vaccine campaigns...
November 24, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29173968/causality-test-of-ambient-fine-particles-and-human-influenza-in-taiwan-age-group-specific-disparity-and-geographic-heterogeneity
#20
Cathy W S Chen, Ying-Hen Hsieh, Hung-Chieh Su, Jia Jing Wu
Influenza is a major global public health problem, with serious outcomes that can result in hospitalization or even death. We investigate the causal relationship between human influenza cases and air pollution, quantified by ambient fine particles <2.5μm in aerodynamic diameter (PM2.5). A modified Granger causality test is proposed to ascertain age group-specific causal relationship between weekly influenza cases and weekly adjusted accumulative PM2.5 from 2009 to 2015 in 11 cities and counties in Taiwan...
November 21, 2017: Environment International
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