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Influenza vaccines

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https://www.readbyqxmd.com/read/28107375/narcolepsy-type-1-is-associated-with-a-systemic-increase-and-activation-of-regulatory-t-cells-and-with-a-systemic-activation-of-global-t-cells
#1
Michel Lecendreux, Guillaume Churlaud, Fabien Pitoiset, Armelle Regnault, Tu Anh Tran, Roland Liblau, David Klatzmann, Michelle Rosenzwajg
Narcolepsy is a rare neurologic disorder characterized by excessive daytime sleepiness, cataplexy and disturbed nocturnal sleep patterns. Narcolepsy type 1 (NT1) has been shown to result from a selective loss of hypothalamic hypocretin-secreting neurons with patients typically showing low CSF-hypocretin levels (<110 pg/ml). This specific loss of hypocretin and the strong association with the HLA-DQB1*06:02 allele led to the hypothesis that NT1 could be an immune-mediated pathology. Moreover, susceptibility to NT1 has recently been associated with several pathogens, particularly with influenza A H1N1 virus either through infection or vaccination...
2017: PloS One
https://www.readbyqxmd.com/read/28106111/broad-range-antiviral-activity-of-hydrogen-sulfide-against-highly-pathogenic-rna-viruses
#2
Nikolay Bazhanov, Olivier Escaffre, Alexander N Freiberg, Roberto P Garofalo, Antonella Casola
Hydrogen sulfide is an important endogenous mediator that has been the focus of intense investigation in the past few years, leading to the discovery of its role in vasoactive, cytoprotective and anti-inflammatory responses. Recently, we made a critical observation that H2S also has a protective role in paramyxovirus infection by modulating inflammatory responses and viral replication. In this study we tested the antiviral and anti-inflammatory activity of the H2S slow-releasing donor GYY4137 on enveloped RNA viruses from Ortho-, Filo-, Flavi- and Bunyavirus families, for which there is no FDA-approved vaccine or therapeutic available, with the exception of influenza...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28103212/coverage-with-tetanus-diphtheria-and-acellular-pertussis-vaccine-and-influenza-vaccine-among-pregnant-women-minnesota-march-2013-december-2014
#3
Alexandra Barber, Miriam Halstead Muscoplat, Anna Fedorowicz
Pertussis and influenza infections can result in severe disease in infants. The diphtheria, tetanus, acellular pertussis (DTaP) vaccine is recommended for infants beginning at age 2 months, and influenza vaccine is recommended for infants aged ≥6 months. Vaccination of pregnant women induces the production of antibodies that are transferred across the placenta to the fetus and provide passive protection until infants are old enough to receive DTaP and influenza vaccines (1-3). To protect young infants before they are age-eligible for vaccination, the Advisory Committee on Immunization Practices (ACIP) has recommended since 2004 that all women who are or will be pregnant during influenza season receive inactivated influenza vaccine (1), and since 2013 that all pregnant women receive the tetanus, diphtheria, acellular pertussis (Tdap) vaccine (3)...
January 20, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28100621/recombinant-adenoviruses-displaying-matrix-2-ectodomain-epitopes-m2e-on-their-fiber-proteins-as-universal-influenza-vaccines
#4
Xinying Tang, Yong Yang, Xiaoli Xia, Chao Zhang, Xi Yang, Yufeng Song, Xinyi Dai, Min Wang, Dongming Zhou
: Influenza is a zoonotic disease that poses severe threats to public health and the global economy. Re-emerging influenza pandemics highlight the demand for universal influenza vaccines. We developed a novel virus platform, AdC68-F3M2e, by introducing three conserved M2e epitopes into the HI loop of the chimpanzee adenovirus (AdV) fiber protein. The M2e epitopes were expressed sufficiently on the AdV virion surface without affecting fiber trimerization. Additionally, one recombinant adenovirus, AdC68-F3M2e(H1-H5-H7), induced robust M2e-specific antibody responses in BALB/c mice after two sequential vaccinations and conferred efficient protection against homologous and heterologous IV challenges...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100497/avian-derived-and-human-seasonal-derived-hemagglutinin-proteins-elicit-cd4-t-cell-responses-that-are-comparable-in-epitope-abundance-and-diversity
#5
Anthony DiPiazza, Katherine Richards, Nicholas Poulton, Andrea J Sant
Avian influenza viruses remain a significant concern due to their pandemic potential. Vaccine trials have suggested that humans respond poorly to avian influenza vaccines, relative to seasonal vaccines. It is important to understand, first, if there is a general deficiency in the ability of avian HA proteins to generate immune responses and if so, what underlies this defect. This question is of particular interest because it has been suggested that in humans, the poor immunogenicity of H7 vaccines may be due to a paucity of CD4 T cell epitopes...
January 18, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28100496/preexisting-immunity-not-frailty-phenotype-predicts-influenza-post-vaccination-titers-among-older-veterans
#6
Puja Van Epps, Terrence Tumpey, Melissa B Pearce, Hana Golding, Patricia Higgins, Thomas Hornick, Christopher Burant, Brigid M Wilson, Richard Banks, Stefan Gravenstein, David H Canaday
Both preexisting immunity to influenza and age have been shown to be a correlate of influenza vaccine response. Frailty, an indicator of functional impairment in older adults, has also been shown in one study to predict lower influenza vaccine responses among non-veterans. In the current study we aimed to determine the association between frailty, preexisting immunity and immune response to influenza vaccine in older veterans. We analyzed 117 subjects (age range 62-95 years; median 81) divided into 3 cohorts based on the Fried frailty test: non-frail (NF: N=23; median age 68), pre-frail (PF: N=50; median age 80) and frail (F:N=44; median age 82) during the 2010-2011 and 11-12 influenza seasons...
January 18, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28099486/do-thai-physicians-recommend-seasonal-influenza-vaccines-to-pregnant-women-a-cross-sectional-survey-of-physicians-perspectives-and-practices-in-thailand
#7
Prabda Praphasiri, Darunee Ditsungneon, Adena Greenbaum, Fatimah S Dawood, Pornsak Yoocharoen, Deborah M Stone, Sonja J Olsen, Kim A Lindblade, Charung Muangchana
BACKGROUND: Physicians play a major role in influencing acceptance and uptake of vaccines. However, little is known about physicians' perspectives on influenza vaccination of pregnant women in Thailand, for whom vaccine coverage is estimated at <1%. METHOD: In 2013, a self-administered questionnaire on physicians' perceptions, attitudes and practices related to influenza vaccination for pregnant women was distributed to 1,134 hospitals with an antenatal care clinic (ANC) in Thailand...
2017: PloS One
https://www.readbyqxmd.com/read/28099485/cell-based-systems-biology-analysis-of-human-as03-adjuvanted-h5n1-avian-influenza-vaccine-responses-a-phase-i-randomized-controlled-trial
#8
Leigh M Howard, Kristen L Hoek, Johannes B Goll, Parimal Samir, Allison Galassie, Tara M Allos, Xinnan Niu, Laura E Gordy, C Buddy Creech, Nripesh Prasad, Travis L Jensen, Heather Hill, Shawn E Levy, Sebastian Joyce, Andrew J Link, Kathryn M Edwards
BACKGROUND: Vaccine development for influenza A/H5N1 is an important public health priority, but H5N1 vaccines are less immunogenic than seasonal influenza vaccines. Adjuvant System 03 (AS03) markedly enhances immune responses to H5N1 vaccine antigens, but the underlying molecular mechanisms are incompletely understood. OBJECTIVE AND METHODS: We compared the safety (primary endpoint), immunogenicity (secondary), gene expression (tertiary) and cytokine responses (exploratory) between AS03-adjuvanted and unadjuvanted inactivated split-virus H5N1 influenza vaccines...
2017: PloS One
https://www.readbyqxmd.com/read/28098157/antibody-responses-to-trivalent-inactivated-influenza-vaccine-in-health-care-personnel-previously-vaccinated-and-vaccinated-for-the-first-time
#9
Kuan-Ying A Huang, Shih-Cheng Chang, Yhu-Chering Huang, Cheng-Hsun Chiu, Tzou-Yien Lin
Inactivated influenza vaccination induces a hemagglutinin-specific antibody response to the strain used for immunization. Annual vaccination is strongly recommended for health care personnel. However, it is debatable if repeated vaccination would affect the antibody response to inactivated influenza vaccine through the time. We enrolled health care personnel who had repeated and first trivalent inactivated influenza vaccination in 2005-2008. Serological antibody responses were measured by hemagglutination-inhibition (HI) test...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28096374/phylogenetic-analysis-of-the-human-antibody-repertoire-reveals-quantitative-signatures-of-immune-senescence-and-aging
#10
Charles F A de Bourcy, Cesar J Lopez Angel, Christopher Vollmers, Cornelia L Dekker, Mark M Davis, Stephen R Quake
The elderly have reduced humoral immunity, as manifested by increased susceptibility to infections and impaired vaccine responses. To investigate the effects of aging on B-cell receptor (BCR) repertoire evolution during an immunological challenge, we used a phylogenetic distance metric to analyze Ig heavy-chain transcript sequences in both young and elderly individuals before and after influenza vaccination. We determined that BCR repertoires become increasingly specialized over a span of decades, but less plastic...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096183/pneumococcal-neuraminidase-a-nana-promotes-biofilm-formation-and-synergizes-with-influenza-a-virus-in-nasal-colonization-and-middle-ear-infection
#11
John T Wren, Lance K Blevins, Bing Pang, Ankita Basu Roy, Melissa B Oliver, Jennifer L Reimche, Jessie E Wozniak, Martha A Alexander-Miller, W Edward Swords
Even in the vaccine era, Streptococcus pneumoniae (pneumococcus) remains a leading cause of otitis media, a significant public health burden, in large because of its high prevalence of nasal colonization in children. The primary pneumococcal neuraminidase NanA, which is a sialidase that catalyzes the cleavage of terminal sialic acids from host glycoconjugates, is involved in both of these processes. Coinfection with influenza A virus, which also expresses a neuraminidase, exacerbates nasal colonization and disease by S...
January 17, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28094831/barnvaccinationsprogrammet-%C3%A2-effektivt-men-otillr%C3%A3-ckligt-erfarenheter-fr%C3%A3-n-astrid-lindgrens-barnsjukhus-2008%C3%A2-2013
#12
Åsa Laestadius, Anna Nilsson, Rutger Bennet, Gordana Bogdanovic, Margareta Eriksson
The national Swedish immunisation programme includes vaccine against diphtheria, tetanus, polio, pertussis, Haemophilus influenzae type B, Pneumococcus as well as measles, mumps and rubella. Data were collected on hospital admissions for children 0- 17 years of age of vaccine-preventable diseases during 2008-2013 at Astrid Lindgren Children's Hospital, Stockholm. Patients were identified by discharge diagnosis codes as well as from the clinical microbiology laboratory. There were rare cases of measles and mumps, and only a few cases of invasive bacterial diseases...
January 16, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28094077/human-papillomavirus-vaccine-series-completion-in-boys-before-and-after-recommendation-for-routine-immunization
#13
Bradley Ackerson, Rulin Hechter, Margo Sidell, Lina S Sy, Jeffrey Slezak, Chun Chao, Nilesh Patel, Hung-Fu Tseng, Steven Jacobsen
BACKGROUND: Although the incidence of HPV-attributable cancers in males is rapidly increasing, HPV vaccine uptake in males remains poor. While quadrivalent human papillomavirus vaccine (4vHPV) series initiation in males increased following the Advisory Committee Immunization Practices (ACIP) male routine use recommendation, its impact on 4vHPV series completion in males at ACIP-recommended intervals has not been evaluated in large male cohorts. We examined trends and correlates of 4vHPV completion since licensure in males in a large cohort of insured boys before and after the ACIP routine use recommendation...
January 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28094076/influenza-vaccination-in-older-people-with-diabetes-and-their-household-contacts
#14
Lin Yang, Hairong Nan, Jun Liang, Yin Hang Chan, Laam Chan, Rita Wing Man Sum, Yee Mei Kwan, Feifei Zhou, Huaiqing Meng, Lorna Kwai Ping Suen
BACKGROUND: People with diabetes are at a higher risk of influenza infections and severe complications. The vaccination of close contacts could offer indirect protection to people with diabetes; this is known as "herd immunity." The aim of this study is to investigate the vaccination rates of people with diabetes and their household contacts in Hong Kong. RESEARCH DESIGN AND METHODS: Face-to-face interviews with 158 patients diagnosed with Type 2 diabetes and aged ⩾65years were conducted in clinics...
January 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28093338/a-virus-like-particle-vaccination-strategy-expands-its-tolerance-to-h3n2-antigenic-drift-by-enhancing-neutralizing-antibodies-against-hemagglutinin-stalk
#15
Ji-Rong Yang, Chieh-Yu Cheng, Chih-Yuan Chen, Chao-Hua Lin, Chuan-Yi Kuo, Hsiang-Yi Huang, Fu-Ting Wu, Yu-Chih Yang, Chia-Ying Wu, Ming-Tsan Liu, Pei-Wen Hsiao
Seasonal influenza viruses impact public health annually due to their continual evolution. However, the current inactivated seasonal vaccines provide poor protection against antigenically drifted viruses and require periodical reformulation through hit-and-miss predictions about which strains will circulate during the next season. To reduce the impact caused by vaccine mismatch, we investigated the drift-tolerance of virus-like particles (VLP) as an improved vaccine candidate. The cross-protective humoral immunity elicited by the H3N2-VLP vaccine constructed for the 2011-2012 season was examined against viruses isolated from 2010 to 2015 in Taiwan evolving chronologically through clades 1, 4, 5, 3B and 3C, as well as viruses that were circulating globally in 2005, 2007 and 2009...
January 13, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28092165/recommendations-for-best-disinfectant-practices-to-reduce-the-spread-of-infection-via-wrestling-mats
#16
Linda Mull Young, Vicki Abram Motz, Emily R Markey, Suzanne C Young, Ronald E Beaschler
CONTEXT:  At the request of the National Wrestling Coaches Association and the head wrestling coach at our university, we conducted a study of infection transmission in collegiate wrestlers. OBJECTIVE:  To examine disinfectant effectiveness and develop best-practice guidelines for minimizing the spread of skin infections via wrestling mats. DESIGN:  Controlled laboratory study and crossover study. SETTING:  Laboratory and two 15-college wrestling invitational meets...
January 16, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28091625/mplex-a-method-for-simultaneous-pathogen-inactivation-and-extraction-of-samples-for-multi-omics-profiling
#17
Kristin E Burnum-Johnson, Jennifer E Kyle, Amie J Eisfeld, Cameron P Casey, Kelly G Stratton, Juan F Gonzalez, Fabien Habyarimana, Nicholas M Negretti, Amy C Sims, Sadhana Chauhan, Larissa B Thackray, Peter J Halfmann, Kevin B Walters, Young-Mo Kim, Erika M Zink, Carrie D Nicora, Karl K Weitz, Bobbie-Jo M Webb-Robertson, Ernesto S Nakayasu, Brian Ahmer, Michael E Konkel, Vladimir Motin, Ralph S Baric, Michael S Diamond, Yoshihiro Kawaoka, Katrina M Waters, Richard D Smith, Thomas O Metz
The continued emergence and spread of infectious agents is of great concern, and systems biology approaches to infectious disease research can advance our understanding of host-pathogen relationships and facilitate the development of new therapies and vaccines. Molecular characterization of infectious samples outside of appropriate biosafety containment can take place only subsequent to pathogen inactivation. Herein, we describe a modified Folch extraction using chloroform/methanol that facilitates the molecular characterization of infectious samples by enabling simultaneous pathogen inactivation and extraction of proteins, metabolites, and lipids for subsequent mass spectrometry-based multi-omics measurements...
January 16, 2017: Analyst
https://www.readbyqxmd.com/read/28090052/interstitial-pneumonia-associated-with-the-influenza-vaccine-a-report-of-two-cases
#18
Makoto Hibino, Tetsuri Kondo
Although the influenza vaccine is relatively safe and effective, serious complications can develop in rare cases. We encountered two cases of interstitial pneumonia that developed after vaccination during the 2014-2015 influenza season. Overall, nine cases, including the two presented here, have been recorded in PubMed and the Cochrane library; eight patients were treated with corticosteroids, and all nine survived, suggesting a good prognosis. Interstitial pneumonia is rare; however, we found an increase in its incidence after 2009...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28089151/influenza-vaccination-reduces-hemorrhagic-stroke-risk-in-patients-with-atrial-fibrillation-a-population-based-cohort-study
#19
Ju-Chi Liu, Ta-Jung Wang, Li-Chin Sung, Pai-Feng Kao, Tsung-Yeh Yang, Wen-Rui Hao, Chun-Chao Chen, Yi-Ping Hsu, Szu-Yuan Wu
PURPOSE: The risk of hemorrhagic stroke in patients with atrial fibrillation (AF) is low but the consequences of its occurrence are extremely severe. In this study, we investigated the association of influenza vaccination with the risk of hemorrhagic stroke to develop an efficient strategy for reducing this risk in patients with AF. METHODS: In this study, data were retrieved from the Taiwan National Health Insurance Research Database. The study cohort comprised all patients who received a diagnosis of AF (n=14,454) before January 1, 2005 (index date) and were followed until December 31, 2012...
December 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28089141/stable-emulsion-se-alone-is-an-effective-adjuvant-for-a-recombinant-baculovirus-expressed-h5-influenza-vaccine-in-healthy-adults-a-phase-2-trial
#20
John J Treanor, Laurence Chu, Brandon Essink, Derek Muse, Hana M El Sahly, Ruvim Izikson, Karen L Goldenthal, Peter Patriarca, Lisa M Dunkle
BACKGROUND: Influenza A viruses of the H5 subtype have been identified as important targets for development of vaccines. Achievement of potentially protective antibody responses against pandemic strains has usually required the use of adjuvants. OBJECTIVES: We evaluated a candidate A/Indonesia/05/2005 (H5) vaccine generated by baculovirus expression of recombinant hemagglutinin (HA) protein with or without stable emulsion (SE) as an adjuvant. METHODS: Healthy subjects 18-49years old were randomized (1:1:1:1) to receive two doses of rHA at 7...
January 11, 2017: Vaccine
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