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Elderly and influenza

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https://www.readbyqxmd.com/read/28738364/risk-factors-for-community-acquired-pneumonia-in-adults-a-systematic-review-of-observational-studies
#1
Jordi Almirall, Mateu Serra-Prat, Ignasi Bolíbar, Valentina Balasso
We performed a systematic review of the literature to establish conclusive evidence of risk factors for community-acquired pneumonia (CAP). Observational studies (cross-sectional, case-control, and cohort studies) the primary outcome of which was to assess risk factors for CAP in both hospitalized and ambulatory adult patients with radiologically confirmed pneumonia were selected. The Newcastle-Ottawa Scale specific for cohort and case-control designs was used for quality assessment. Twenty-nine studies (20 case-control, 8 cohort, and 1 cross-sectional) were selected, with 44...
July 25, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28734139/%C3%AE-nfluenza-a-h3n2-genetic-variants-in-vaccinated-patients-in-northern-greece
#2
A Melidou, G Gioula, M Exindari, E Ioannou, K Gkolfinopoulou, T Georgakopoulou, S Tsiodras, A Papa
BACKGROUND: Influenza A(H3N2) viruses predominated during the influenza 2016/2017 season and showed extensive genetic diversification. A high vaccination failure rate was noticed during the 2016/17 season in Greece, especially among the elderly. OBJECTIVES: The scope of the study was to investigate the genetic characteristics of A(H3N2) circulating viruses and viruses detected in vaccinated patients. STUDY DESIGN: Virus samples originated from vaccinated and unvaccinated patients, obtained at the National Influenza Centre for northern Greece...
July 14, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28725560/haemophilus-influenzae-serotype-f-endocarditis-and-septic-arthritis
#3
Katerina Oikonomou, Basel Alhaddad, Kayla Kelly, Ravindra Rajmane, George Apergis
Haemophilus influenzae represents gram-negative coccobacilli which can cause endocarditis, meningitis, septicemia, pneumonia, septic arthritis. H.influenzae exists as encapsulated and unencapsulated (non-typeable) strains. Non-typeable H.influenzae are emerging pathogens especially in elderly population. We report a case of a 73 year old woman with bacteremia, endocarditis and septic arthritis due to H.influenzae serotype f. This case emphasizes the clinical features and the key elements of diagnosis and management of infections caused by non-typeable strains of H...
2017: IDCases
https://www.readbyqxmd.com/read/28722190/estimating-population-effects-of-vaccination-using-large-routinely-collected-data
#4
M Elizabeth Halloran, Michael G Hudgens
Vaccination in populations can have several kinds of effects. Establishing that vaccination produces population-level effects beyond the direct effects in the vaccinated individuals can have important consequences for public health policy. Formal methods have been developed for study designs and analysis that can estimate the different effects of vaccination. However, implementing field studies to evaluate the different effects of vaccination can be expensive, of limited generalizability, or unethical. It would be advantageous to use routinely collected data to estimate the different effects of vaccination...
July 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28720319/safety-and-efficacy-of-anti-influenza-drugs-intravenous-peramivir-against-influenza-virus-infection-in-elderly-patients-with-underlying-disease
#5
Kazufumi Takamatsu, Satoshi Marumo, Motonari Fukui, Atsuko Hata
We retrospectively analyzed data of 38 elderly patients, each with an underlying disease, to evaluate peramivir safety and efficacy. Six patients (15.8%) experienced adverse events, all tolerated. Median time from administration until the return to normal temperatures was 31.5 h (95% CI: 22.4-40.6). Results confirm intravenous peramivir's usefulness.
June 26, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28714923/heterologous-humoral-response-against-h5n1-h7n3-and-h9n2-avian-influenza-viruses-after-seasonal-vaccination-in-a-european-elderly-population
#6
Ivan Sanz, Silvia Rojo, Sonia Tamames, José María Eiros, Raúl Ortiz de Lejarazu
Avian influenza viruses are currently one of the main threats to human health in the world. Although there are some screening reports of antibodies against these viruses in humans from Western countries, most of these types of studies are conducted in poultry and market workers of Asian populations. The presence of antibodies against avian influenza viruses was evaluated in an elderly European population. An experimental study was conducted, including pre- and post-vaccine serum samples obtained from 174 elderly people vaccinated with seasonal influenza vaccines of 2006-2007, 2008-2009, 2009-2010, and 2010-2011 Northern Hemisphere vaccine campaigns...
July 17, 2017: Vaccines
https://www.readbyqxmd.com/read/28710188/leucocytoclastic-vasculitis-following-influenza-vaccination
#7
Sissi Cao, Dongmei Sun
BACKGROUND: Influenza vaccinations are commonly administered and effectively prevent influenza. Most vaccine reactions are mild and self-limiting with few reported cases of vasculitis. We present a case of vasculitis post-vaccination unique for its dramatic visual presentation and rapid response to treatment with the aim to emphasise possible causation and timely treatment. CASE PRESENTATION: This is a case of a 60-year-old man with chronic idiopathic pulmonary fibrosis, with fever, arthralgias and rash characterised by extensive erythematous plaques on his limbs and trunk 5 days after influenza vaccination...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28709555/repeated-seasonal-influenza-vaccination-among-elderly-in-europe-effects-on-laboratory-confirmed-hospitalised-influenza
#8
Marc Rondy, Odile Launay, Jesus Castilla, Simona Costanzo, Joan Puig-Barberà, Giedre Gefenaite, Amparo Larrauri, Caterina Rizzo, Daniela Pitigoi, Ritva K Syrjänen, Ausenda Machado, Sanja Kurečić Filipović, Judit Krisztina Horváth, Iwona Paradowska-Stankiewicz, Sierk Marbus, Alain Moren
In Europe, annual influenza vaccination is recommended to elderly. From 2011 to 2014 and in 2015-16, we conducted a multicentre test negative case control study in hospitals of 11 European countries to measure influenza vaccine effectiveness (IVE) against laboratory confirmed hospitalised influenza among people aged ≥65years. We pooled four seasons data to measure IVE by past exposures to influenza vaccination. We swabbed patients admitted for clinical conditions related to influenza with onset of severe acute respiratory infection ≤7days before admission...
August 3, 2017: Vaccine
https://www.readbyqxmd.com/read/28708957/influenza-vaccination-in-the-elderly
#9
Smetana Jan, Chlibek Roman, Shaw Jana, Splino Miroslav, Prymula Roman
Seasonal influenza is a prevalent and serious annual illness resulting in widespread morbidity and economic disruption throughout the population; the elderly and immunocompromised are particularly vulnerable to serious sequelae and mortality. The changing demographics worldwide to an aging society have important implications for public health policy and pharmaceutical innovations. For instance, primary prevention via immunization is effective in reducing the burden of influenza illness among the elderly. However, the elderly may be insufficiently protected by vaccination due to the immunosenescence which accompanies aging...
July 14, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28708896/characteristics-and-outcomes-of-a-cohort-hospitalized-for-pandemic-and-seasonal-influenza-in-germany-based-on-nationwide-inpatient-data
#10
Daniel von der Beck, Werner Seeger, Susanne Herold, Andreas Günther, Benjamin Löh
RATIONALE: From June of 2009 to August of 2010 the influenza subtype H1N1pdm09 caused a worldwide pandemic. The impact on populations and health care systems around the globe evolved differently. Substantial data come from the German national surveillance network in an outpatient and private practice setting, while information on hospitalized patients in Germany is rather limited. METHODS: Data from the Federal Statistics Office comprising health insurance claims of the entire nationwide inpatient sample from 2005 to 2012 were used to identify patients who were hospitalized for laboratory-confirmed influenza and to analyse demographical aspects, comorbidities, hospitalization duration, outcomes and ventilator use during the pandemic and seasonal waves of influenza...
2017: PloS One
https://www.readbyqxmd.com/read/28701087/epidemiological-characteristics-associated-with-uptake-of-pneumococcal-vaccine-among-older-adults-living-in-the-community-in-singapore-results-from-the-national-health-surveillance-survey-2013
#11
Li Wei Ang, Jeffery Cutter, Lyn James, Kee Tai Goh
AIMS: In Singapore, pneumococcal vaccination is recommended for the elderly (i.e. those ≥65 years of age) and people with chronic medical conditions. We investigated epidemiological characteristics associated with the uptake of pneumococcal vaccine based on a nationally representative cross-sectional sample of community-living adults aged ≥50 years. METHODS: The data were obtained from the National Health Surveillance Survey (NHSS) 2013. Associations between pneumococcal vaccination and sociodemographic and health-related variables were analysed using univariable and multivariable logistic regression models...
July 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28700738/age-dependent-differences-in-the-kinetics-of-%C3%AE-%C3%AE-t-cells-after-influenza-vaccination
#12
Ulrik Stervbo, Dominika Pohlmann, Udo Baron, Cecilia Bozzetti, Karsten Jürchott, Julia Nora Mälzer, Mikalai Nienen, Sven Olek, Toralf Roch, Axel Ronald Schulz, Sarah Warth, Avidan Neumann, Andreas Thiel, Andreas Grützkau, Nina Babel
Immunosenescence is a hallmark of the aging immune system and is considered the main cause of a reduced vaccine efficacy in the elderly. Although γδ T cells can become activated by recombinant influenza hemagglutinin, their age-related immunocompetence during a virus-induced immune response has so far not been investigated. In this study we evaluate the kinetics of γδ T cells after vaccination with the trivalent 2011/2012 northern hemisphere seasonal influenza vaccine. We applied multi-parametric flow cytometry to a cohort of 21 young (19-30 years) and 23 elderly (53-67 years) healthy individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28695426/influenza-vaccination-beliefs-and-practices-in-elderly-primary-care-patients
#13
Sharon Rikin, Vanessa Scott, Steven Shea, Philip LaRussa, Melissa S Stockwell
The majority of influenza related deaths and hospitalizations occur among individuals ≥65 years, yet the national influenza vaccination rate for this group is 63% and is lower in the Hispanic population. Previous studies have described negative predictors of vaccination; however, there is a knowledge gap of how influenza vaccine-specific beliefs affect vaccination rates. We examined the relationship between influenza vaccine health beliefs and vaccination behaviors in a cross sectional sample of 200 primarily Hispanic patients aged ≥65 years in an academic general internal medicine clinic...
July 10, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28689651/frequencies-of-peripheral-immune-cells-in-older-adults-following-seasonal-influenza-vaccination-with-an-adjuvanted-vaccine
#14
David Goldeck, Heidi Theeten, Fakhri Hassouneh, Lilly Oettinger, Kilian Wistuba-Hamprecht, Nathalie Cools, Ourania E Tsitsilonis, Graham Pawelec
As age increases, immune responses and consequently protection following vaccination to seasonal influenza is commonly believed to decrease. Possible drivers of this immune dysfunction include immunosenescence, repeated exposure to the same seasonal influenza antigens, and prior infection with cytomegalovirus (CMV). Here, to determine immune parameters distinguishing vaccine humoral responders (R) from non-responders (NR) following vaccination, we surveyed broad peripheral blood "cellular immune correlates" of older adults vaccinated with Fluad® (an adjuvanted subunit influenza vaccine containing strains H1N1, H3N2 and B)...
July 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28687075/seasonal-influenza-vaccination-coverage-and-its-determinants-among-nursing-homes-personnel-in-western-france
#15
Christelle Elias, Anna Fournier, Anca Vasiliu, Nicolas Beix, Rémi Demillac, Hélène Tillaut, Yvonnick Guillois, Serge Eyebe, Bastien Mollo, Pascal Crépey
BACKGROUND: Influenza-associated deaths is an important risk for the elderly in nursing homes (NHs) worldwide. Vaccination coverage among residents is high but poorly effective due to immunosenescence. Hence, vaccination of personnel is an efficient way to protect residents. Our objective was to quantify the seasonal influenza vaccination (IV) coverage among NH for elderly workers and identify its determinants in France. METHODS: We conducted a cross-sectional study in March 2016 in a randomized sample of NHs of the Ille-et-Vilaine department of Brittany, in western France...
July 7, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28668446/influenza-vaccine-effectiveness-in-adults-based-on-the-rapid-influenza-diagnostic-test-results-during-the-2015-16-season
#16
Yuki Seki, Akira Onose, Norio Sugaya
We assessed the influenza vaccine effectiveness (VE) of an inactivated quadrivalent influenza vaccine in adult patients, in our test-negative case-control design study based on the results of a rapid influenza diagnostic test. During the 2015/16 season in Japan, influenza A(H1N1)pdm09 virus and influenza B virus were epidemic. The overall adjusted VE was 44% (95% confidence interval [CI]: 13.6%-63.7%). The adjusted VE was 52.9% (95%CI: 20%-72.3%) against any influenza virus among those < 65 years of age and -5% (95%CI: 136%-53...
June 28, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28650274/intranasal-administration-of-whole-inactivated-influenza-virus-vaccine-as-a-promising-influenza-vaccine-candidate
#17
Akira Ainai, Tadaki Suzuki, Shin-Ichi Tamura, Hideki Hasegawa
The effect of the current influenza vaccine, an inactivated virus vaccine administered by subcutaneous/intramuscular injection, is limited to reducing the morbidity and mortality associated with seasonal influenza outbreaks. Intranasal vaccination, by contrast, mimics natural infection and induces not only systemic IgG antibodies but also local secretory IgA (S-IgA) antibodies found on the surface of the mucosal epithelium in the upper respiratory tract. S-IgA antibodies are highly effective at preventing virus infection...
July 2017: Viral Immunology
https://www.readbyqxmd.com/read/28646948/generalized-herd-effects-and-vaccine-evaluation-impact-of-live-influenza-vaccine-on-off-target-bacterial-colonisation
#18
Michael J Mina
Interactions between pathogens and commensal microbes are major contributors to health and disease. Infectious diseases however are most often considered independent, viewed within a one-host one-pathogen paradigm and, by extension, the interventions used to treat and prevent them are measured and evaluated within this same paradigm. Vaccines, especially live vaccines, by stimulating immune responses or directly interacting with other microbes can alter the environment in which they act, with effects that span across pathogen species...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28636411/asthma-and-influenza-vaccination-in-elderly-hospitalized-patients-matched-case-control-study-in-spain
#19
María Morales Suárez-Varela, Agustin Llopis, Estrella Fernandez-Fabrellas, Francisco Sanz, M Jose Perez-Lozano, Vicente Martin, Jenaro Astray, Jesús Castilla, Mikel Egurrola, Luis Force, Diana Toledo, Àngela Domínguez
OBJECTIVES: Influenza infection is an exacerbating factor for asthma, and its prevention is critical in managing asthmatic patients. We investigated the effect of influenza vaccination on asthmatic and non-asthmatic patients hospitalized with laboratory-confirmed influenza in Spain. METHODS: We made a matched case-control study to assess the frequency of hospitalization for influenza in people aged ≥65 years. Hospitalized patients with unplanned hospital admissions were recruited from 20 hospitals representing seven Spanish regions...
June 21, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28632298/patient-med-tbe-f%C3%A3-rb%C3%A3-ttrades-snabbt-vid-behandling-med-kortison-evidens-saknas-dock-f%C3%A3-r-v%C3%A3-rdet-av-immunmodulerande-terapi
#20
Carl Wengse, Jesper Ericsson, Susanna Hallberg, Johan Ursing
Rapid improvement of tick-borne encephalitis after treatment with corticosteroids Tick-borne encephalitis (TBE) is a viral disease transmitted by ticks. The virus is divided into three subtypes named Western, Siberian and Far Eastern TBE virus (TBEV). Western TBEV is endemic in parts of Europe and Sweden and typically causes a biphasic illness with influenza-like symptoms followed by neurological symptoms ranging from mild meningitis to severe meningoencephalitis and death. Despite an effective vaccine, TBE is increasing in Sweden and Europe...
June 16, 2017: Läkartidningen
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