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influenza A

Isabel Lane, Ashley Bryce, Suzanne M Ingle, Alastair D Hay
Purpose: Antimicrobial resistance is a significant threat to public health. Diagnostic uncertainty is a key driver of antimicrobial prescribing. We sought to determine whether locally relevant, real-time syndromic or microbiological infection epidemiology can improve prescribing by reducing diagnostic uncertainty. Methods: Eligible studies investigated effects on primary care prescribing for common infections in Organisation For Economic Co-Operation And Development countries...
February 26, 2018: Family Practice
Helmuth Haslacher, Hannelore Fallmann, Claudia Waldhäusl, Edith Hartmann, Oswald F Wagner, Werner Waldhäusl
BACKGROUND: T1D treatment requires informed self-responsible patients, who, however, frequently miss their therapeutic goals, providing considerable potential for improvement. METHODS: This observational report evaluates T1D patients [N = 109], aged ≥18 years (range 22-82), poorly controlled at home, at and 3 weeks after their admission to our diabetes rehabilitation clinic [DRC], where they were offered standardized, but unmonitored life-style modification. RESULTS: At admission, patients displayed elevated HbA1c values (66 mmol/mol [57; 81]), a high prevalence of co-morbidities (88%), lipodystrophies due to monolocal insulin injections (42%), a low rate of influenza (16%) and pneumococcal (7%) immunization, and underuse of lipid-lowering drugs (-38%)...
2018: PloS One
Chi Eun Oh, Ui-Yoon Choi, Byung Wook Eun, Taek Jin Lee, Ki Hwan Kim, Dong Ho Kim, Nam Hee Kim, Dae Sun Jo, Sun Hee Shin, Kyung-Ho Kim, Hun Kim, Yun-Kyung Kim
BACKGROUND: Although a number of cell culture-derived influenza vaccines have been approved for use in adults, there have been few clinical trials of cell culture-derived seasonal influenza vaccines for young children. METHODS: We conducted a randomized, double-blind phase III clinical trial to evaluate the safety and immunogenicity of a cell culture-derived subunit trivalent inactivated influenza vaccine (NBP607, SK Chemicals Co., Ltd., Seongnam, Korea) in healthy children aged 6 months through 18 years...
March 9, 2018: Pediatric Infectious Disease Journal
Nobuo Saito, Kazuhiro Komori, Motoi Suzuki, Takayuki Kishikawa, Takahiro Yasaka, Koya Ariyoshi
Introduction: We investigated the negative effects of prior multiple vaccinations on influenza vaccine effectiveness (VE) and analysed the association of VE with prior vaccine doses. Methods: Patients aged 9-18 years presenting with influenza-like illness at a community hospital on a Japanese remote island during the 2011/12, 2012/13 and 2013/14 seasons were tested for influenza using a rapid diagnostic test (RDT). A test-negative case-control study design was used to estimate the VEs of trivalent inactivated influenza vaccine (TIV)...
March 8, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
John J Miles, Mai Ping Tan, Garry Dolton, Emily Sj Edwards, Sarah Ae Galloway, Bruno Laugel, Mathew Clement, Julia Makinde, Kristin Ladell, Katherine K Matthews, Thomas S Watkins, Katie Tungatt, Yide Wong, Han Siean Lee, Richard J Clark, Johanne M Pentier, Meriem Attaf, Anya Lissina, Ann Ager, Awen Gallimore, Pierre J Rizkallah, Stephanie Gras, Jamie Rossjohn, Scott R Burrows, David K Cole, David A Price, Andrew K Sewell
Polypeptide vaccines effectively activate human T cells but suffer from poor biological stability, which confines both transport logistics and in vivo therapeutic activity. Synthetic biology has the potential to address these limitations through the generation of highly stable antigenic "mimics" using subunits that do not exist in the natural world. We developed a platform based on D-amino acid combinatorial chemistry and used this platform to reverse engineer a fully artificial CD8+ T cell agonist that mirrored the immunogenicity profile of a native epitope blueprint from influenza virus...
March 12, 2018: Journal of Clinical Investigation
Şule Gökçe, Zafer Kurugol, Aslı Aslan, Candan Çiçek
[This corrects the article DOI: 10.1155/2017/4039358.].
2018: Case Reports in Pediatrics
Roberto W Dal Negro, Alessandro Zanasi, Paola Turco, Massimiliano Povero
Background: Influenza and influenza-like syndromes (I-LSs) are infectious diseases occurring on a seasonal basis which can lead to upper (URTI) and lower respiratory tract illness (LRTI) of different severity. The approach to these disorders is unfortunately not uniform. Aim of the study was to investigate real-life people beliefs, the attitude to their prevention and treatment, and their impact in general population. Methods: A cross-sectional survey via Computer Assisted Telephone Interview (CATI) was carried out using a specific questionnaire investigating influenza episode rates, subjects behavior in case of influenza and I-LSs, and prescribed therapy...
2018: Multidisciplinary Respiratory Medicine
Juliana Ruiz Fernandes, Cibele Cristine Berto Marques da Silva, Aline Grandi da Silva, Regina Maria de Carvalho Pinto, Alberto José da Silva Duarte, Celso Ricardo Carvalho, Gil Benard
Exercise training has been shown to reduce symptoms and exacerbations in COPD patients; however, the exercise effect on patients' immune response is poorly known. We thus verified if an exercise program (EP) impacted on proliferative T cell response of COPD patients. Fourteen non-O2 dependent COPD patients on standard treatment were studied. EP consisted in 24 sessions of aerobic and muscular training. Peripheral blood mononuclear cells were stimulated with the mitogen phytohemagglutinin and antigens from Haemophilus influenzae and cytomegalovirus, and the lymphocyte proliferative response (LPR) was assessed through the expression of Ki67 before and after the EP...
March 10, 2018: Lung
Samantha K Dunmire, Priya S Verghese, Henry H Balfour
Epstein-Barr virus (EBV) infects about 90% of adults worldwide. It is the main cause of infectious mononucleosis, which is observed most frequently in adolescents. The disease can last several weeks and is characterized by lymphocytosis, sore throat, lymphadenopathy, and fatigue. Exposure to oral secretions during deep kissing has been identified as the major source for primary EBV infection in adolescents. Oral secretions are also thought to be the source for younger children through intimate intact or sharing food and eating utensils, although this has not been confirmed...
March 5, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
Sharon Rikin, Haomiao Jia, Celibell Y Vargas, Yaritza Castellanos de Belliard, Carrie Reed, Philip LaRussa, Elaine L Larson, Lisa Saiman, Melissa S Stockwell
BACKGROUND: A barrier to influenza vaccination is the misperception that the inactivated vaccine can cause influenza. Previous studies have investigated the risk of acute respiratory illness (ARI) after influenza vaccination with conflicting results. We assessed whether there is an increased rate of laboratory-confirmed ARI in post-influenza vaccination periods. METHODS: We conducted a cohort sub-analysis of children and adults in the MoSAIC community surveillance study from 2013 to 2016...
March 7, 2018: Vaccine
Vidula Purohit, Abhay Kudale, Neisha Sundaram, Saju Joseph, Christian Schaetti, Mitchell G Weiss
BACKGROUND: Prior experience and the persisting threat of influenza pandemic indicate the need for global and local preparedness and public health response capacity. The pandemic of 2009 highlighted the importance of such planning and the value of prior efforts at all levels. Our review of the public health response to this pandemic in Pune, India, considers the challenges of integrating global and national strategies in local programmes and lessons learned for influenza pandemic preparedness...
May 9, 2017: International Journal of Health Policy and Management
Klaudia Chrzastek, Dong-Hun Lee, Saad Gharaibeh, Aniko Zsak, Darrell R Kapczynski
Next-generation sequencing (NGS) technologies are a valuable tool to monitor changes in viral genomes and determine the genetic heterogeneity of viruses. In this study, NGS was applied to clinical poultry samples from Jordan to detect eleven H9N2 low pathogenic avian influenza viruses (LPAIV). All of the viruses tested belonged to Middle East A genetic group of G1 lineage. Deep sequencing demonstrated a high degree of heterogeneity of glutamine and leucine residues at position 226 in the hemagglutinin (HA) gene, which increases specificity to either avian or mammalian-type receptors...
March 7, 2018: Virology
M Anandappa, E Adjei Boakye, W Li, W Zeng, T Rebmann, J J Chang
OBJECTIVES: Influenza vaccination is the best protection against infection and severe complications of disease, such as hospitalization and death. Therefore, it is important to accurately estimate vaccination coverage and to evaluate the role of race/ethnicity. This study examines racial disparities in influenza vaccination among children using a nationally representative sample. STUDY DESIGN: This study used cross-sectional data from the 2009-2014 National Immunization Survey for children aged 19-35 months (n = 98,186) in the United States...
March 7, 2018: Public Health
Nathalie Lejal, Sandrine Truchet, Edna Bechor, Edwige Bouguyon, Vijay Khedkar, Nicolas Bertho, Jasmina Vidic, Pierre Adenot, Stéphanie Solier, Edgar Pick, Anny Slama-Schwok
BACKGROUND: Targeting cells of the host immune system is a promising approach to fight against Influenza A virus (IAV) infection. Macrophage cells use the NADPH oxidase-2 (NOX2) enzymatic complex as a first line of defense against pathogens by generating superoxide ions O2 - and releasing H2 O2 . Herein, we investigated whether targeting membrane -embedded NOX2 decreased IAV entry via raft domains and reduced inflammation in infected macrophages. METHODS: Confocal microscopy and western blots monitored levels of the viral nucleoprotein NP and p67phox , NOX2 activator subunit, Elisa assays quantified TNF-α levels in LPS or IAV-activated mouse or porcine alveolar macrophages pretreated with a fluorescent NOX inhibitor, called nanoshutter NS1...
March 7, 2018: Biochimica et Biophysica Acta
Leen Delang, Rana Abdelnabi, Johan Neyts
Favipiravir, also known as T-705, is an antiviral drug that has been approved in 2014 in Japan to treat pandemic influenza virus infections. The drug is converted intracellularly into its active, phosphoribosylated form, which is recognized as a substrate by the viral RNA-dependent RNA polymerase. Interestingly, besides its anti-influenza virus activity, this molecule is also able to inhibit the replication of flavi-, alpha-, filo-, bunya-, arena-, noro-, and of other RNA viruses, which include neglected and (re)emerging viruses for which no antiviral therapy is currently available...
March 7, 2018: Antiviral Research
Hitoshi Takahashi, Shiho Nagata, Takato Odagiri, Tsutomu Kageyama
The H5 subtype of highly pathogenic avian influenza (H5 HPAI) viruses is a threat to both animal and human public health and has the potential to cause a serious future pandemic in humans. Thus, specific and rapid detection of H5 HPAI viruses is required for infection control in humans. To develop a simple and rapid diagnostic system to detect H5 HPAI viruses with high specificity and sensitivity, we attempted to prepare monoclonal antibodies (mAbs) that specifically recognize linear epitopes in hemagglutinin (HA) of H5 subtype viruses...
March 7, 2018: Biochemical and Biophysical Research Communications
Janessa Pickering, Teck Hui Teo, Ruth B Thornton, Lea-Ann Kirkham, Graeme R Zosky, Holly D Clifford
Exposure to environmental geogenic (or earth-derived) dust can lead to more frequent and severe infections in the human airway. Particulate matter < 10 µm (PM10 ) is the component of air pollution that is commonly associated with the exacerbation of respiratory diseases. We have previously demonstrated that mice exposed to geogenic dust PM10 experienced an exacerbation of inflammatory responses to influenza A virus. Whether geogenic dust PM10 also exacerbates respiratory bacterial infection is not yet known, nor are the components of the dust that drive these responses...
March 6, 2018: Environmental Research
Isaac R Melamed, Michael Borte, Laurenz Trawnicek, Ai-Lan Kobayashi, Roger H Kobayashi, Alan Knutsen, Sudhir Gupta, William Smits, Anna Pituch-Noworolska, Magdalena Strach, Grazyna Pulka, Hans D Ochs, James N Moy
Intravenous immunoglobulin (IVIG) therapy is commonly used to treat patients with primary antibody deficiency. This prospective, open-label, non-randomised, multicentre, phase III trial investigated the pharmacokinetics of a new 10% liquid IVIG product (panzyga®; Octapharma) in 51 patients aged 2-75 years with common variable immunodeficiency (n = 43) or X-linked agammaglobulinaemia (n = 8). Patients were treated with IVIG 10% every 3 (n = 21) or 4 weeks (n = 30) at a dose of 200-800 mg/kg for 12 months...
March 6, 2018: European Journal of Pharmaceutical Sciences
Shin-Hee Kim
Highly pathogenic avian influenza (HPAI) H5N1 viruses are currently endemic in poultry in Egypt. Eradication of the viruses has been unsuccessful due to improper application of vaccine-based control strategies among other preventive measures. The viruses have evolved rapidly with increased bird-to-human transmission efficacy, thus affecting both animal and public health. Subsequent spread of potentially zoonotic low pathogenic avian influenza (LPAI) H9N2 in poultry has also hindered efficient control of avian influenza...
March 9, 2018: Viruses
Qinhai Ma, Qingtian Yu, Xuefeng Xing, Sinian Liu, Chunyu Shi, Jiabo Luo
The San Wu Huangqin Decoction (SWHD), a traditional Chinese medicine formula, is used to treat colds caused by exposure to wind-pathogen, hyperpyrexia, infectious diseases and cancer; moreover, it is used for detoxification. The individual herbs of SWHD, such as Sophora flavescens and Scutellaria baicalensis , exhibit a wide spectrum of antiviral, anti-inflammatory, antibacterial, anticancer and other properties. The Chinese compound formula of SWHD is composed of S. flavescens, S. baicalensis and Rehmannia glutinosa ...
March 9, 2018: Viruses
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