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https://www.readbyqxmd.com/read/29151202/nmr-of-macromolecular-assemblies-and-machines-at-1-ghz-and-beyond-new-transformative-opportunities-for-molecular-structural-biology
#1
Caitlin M Quinn, Mingzhang Wang, Tatyana Polenova
As a result of profound gains in sensitivity and resolution afforded by ultrahigh magnetic fields, transformative applications in the fields of structural biology and materials science are being realized. The development of dual low temperature superconducting (LTS)/high-temperature superconducting (HTS) magnets has enabled the achievement of magnetic fields above 1 GHz (23.5 T), which will open doors to an unprecedented new range of applications. In this contribution, we discuss the promise of ultrahigh field magnetic resonance...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29150910/educating-youth-swine-exhibitors-on-influenza-a-virus-transmission-at-agricultural-fairs
#2
J M Nolting, J Midla, M S Whittington, S D Scheer, A S Bowman
Influenza A virus (IAV) is a major zoonotic pathogen that threatens global public health. Novel strains of influenza A viruses pose a significant risk to public health due to their pandemic potential, and transmission of influenza A viruses from animals to humans is an important mechanism in the generation and introduction of IAVs that threaten human health. The purpose of this descriptive correlational study was to develop real-life training scenarios to better inform swine exhibitors of the risks they may encounter when influenza A viruses are present in swine...
November 17, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/29150194/booster-influenza-vaccination-confers-additional-immune-responses-in-an-elderly-rural-community-dwelling-population
#3
Masahide Matsushita, Seisho Takeuchi, Naoko Kumagai, Masaaki Morio, Chise Matsushita, Kazumi Arise, Toshihide Awatani
This study aimed to examine the effects of a booster vaccination in elderly people using 2 doses of trivalent inactivated influenza vaccine during the 2012-2013 influenza epidemic. Seroprotection rates against the A(H1N1)pdm09 strain in younger elderly people (aged 61-75 years) and the A(H3N2) and B strains in both younger elderly people (aged 61-75 years) as well as very elderly people (aged 76-102 years) did not decrease at 22 weeks after vaccination. This approach confers long-lasting antibody responses and may be useful in clinical practice...
November 14, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/29149637/antiviral-potential-of-natural-compounds-against-influenza-virus-hemagglutinin
#4
S Kannan, P Kolandaivel
Influenza virus of different subtypes H1N1, H2N2, H3N2 and H5N1 cause many human pandemic deaths and threatening the people worldwide. The Hemagglutinin (HA) protein mediates viral attachment to host receptors act as an attractive target. The sixteen natural compounds have been chosen to target the HA protein. Molecular docking studies have been performed to find binding affinity of the compounds. Out of the sixteen, three compounds CI, CII and CIII found to posses a higher binding affinity. The molecular dynamics (MD) simulation has been performed to study the structural, dynamical properties for the nine different complexes CI, CII, CIII bound with H1, H2, H3 proteins and the results were compared...
November 4, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29149524/a-systematic-review-and-meta-analysis-of-fetal-outcomes-following-the-administration-of-influenza-a-h1n1-vaccination-during-pregnancy
#5
REVIEW
Chuan Zhang, Xiaodong Wang, Dan Liu, Lingli Zhang, Xin Sun
BACKGROUND: Pregnant women were identified as a population of priority for vaccination during the H1N1 influenza pandemic breaking out in 2009. OBJECTIVES: To assess adverse fetal outcomes following the administration of H1N1 pandemic vaccination during pregnancy. SEARCH STRATEGY: PubMed, Embase, and Cochrane Library were searched up to January 2017. SELECTION CRITERIA: Cohort studies investigating fetal outcomes after H1N1 influenza vaccination during pregnancy were eligible...
November 17, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29149338/multiplex-respiratory-virus-testing-for-antimicrobial-stewardship-a-prospective-assessment-of-antimicrobial-use-and-clinical-outcomes-among-hospitalized-adults
#6
Makeda Semret, Ian Schiller, Barbara Ann Jardin, Charles Frenette, Vivian G Loo, Jesse Papenburg, Shelly A McNeil, Nandini Dendukuri
Background: Respiratory tract infections are frequent causes of hospitalization and initiation of empirical antimicrobial therapy. Testing for a broad panel of respiratory viruses has been advocated as a useful tool for antibiotic stewardship. We conducted a prospective observational study to assess the impact of rapid viral test results on antimicrobial prescriptions and clinical outcomes among hospitalized adults. Methods: Eight hundred patients admitted with respiratory symptoms were tested by a 12-virus respiratory panel (RVP) during 3 consecutive winters in Montreal, Canada...
November 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29149266/association-between-prior-antibiotic-therapy-and-subsequent-risk-of-community-acquired-infections-a-systematic-review
#7
Umer Malik, David Armstrong, Mark Ashworth, Alex Dregan, Veline L'Esperance, Lucy McDonnell, Mariam Molokhia, Patrick White
Background: Antibiotic use can have negative unintended consequences including disruption of the human microbiota, which is thought to protect against pathogen overgrowth. We conducted a systematic review to assess whether there is an association between exposure to antibiotics and subsequent risk of community-acquired infections. Methods: We searched MEDLINE, EMBASE and Web of Science for studies published before 30 June 2017, examining the association between antibiotic use and subsequent community-acquired infection...
November 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29149183/vaccine-effectiveness-against-laboratory-confirmed-influenza-hospitalizations-among-young-children-during-the-2010-11-to-2013-14-influenza-seasons-in-ontario-canada
#8
Sarah A Buchan, Hannah Chung, Michael A Campitelli, Natasha S Crowcroft, Jonathan B Gubbay, Timothy Karnauchow, Kevin Katz, Allison J McGeer, J Dayre McNally, David Richardson, Susan E Richardson, Laura C Rosella, Andrew Simor, Marek Smieja, Dat Tran, George Zahariadis, Jeffrey C Kwong
Uncertainty remains regarding the magnitude of effectiveness of influenza vaccines for preventing serious outcomes, especially among young children. We estimated vaccine effectiveness (VE) against laboratory-confirmed influenza hospitalizations among children aged 6-59 months. We used the test-negative design in hospitalized children in Ontario, Canada during the 2010-11 to 2013-14 influenza seasons. We used logistic regression models adjusted for age, season, and time within season to calculate VE estimates by vaccination status (full vs...
2017: PloS One
https://www.readbyqxmd.com/read/29149072/different-inhibitory-potencies-of-oseltamivir-carboxylate-zanamivir-and-several-tannins-on-bacterial-and-viral-neuraminidases-as-assessed-in-a-cell-free-fluorescence-based-enzyme-inhibition-assay
#9
Stefanie Quosdorf, Anja Schuetz, Herbert Kolodziej
Neuraminidaseis a key enzyme in the life cycle of influenza viruses and is present in some bacterial pathogens. We here assess the inhibitory potency of plant tannins versus clinically used inhibitors on both a viral and a bacterial model neuraminidase by applying the 2'-(4-methylumbelliferyl)-α-d-N-acetylneuraminic acid (MUNANA)-based activity assay. A range of flavan-3-ols, ellagitannins and chemically defined proanthocyanidin fractions was evaluated in comparison to oseltamivir carboxylate and zanamivir for their inhibitory activities against viral influenza A (H1N1) and bacterial Vibrio cholerae neuraminidase (VCNA)...
November 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29148920/the-unexpected-impact-of-vaccines-on-secondary-bacterial-infections-following-influenza
#10
Amber M Smith, Victor C Huber
Influenza virus infections remain a significant health burden worldwide, despite available vaccines. Factors that contribute to this include a lack of broad coverage by current vaccines and continual emergence of novel virus strains. Further complicating matters, when influenza viruses infect a host, severe infections can develop when bacterial pathogens invade. Secondary bacterial infections (SBIs) contribute to a significant proportion of influenza-related mortality, with Streptococcus pneumoniae, Staphylococcus aureus, Streptococcus pyogenes, and Haemophilus influenzae as major coinfecting pathogens...
November 17, 2017: Viral Immunology
https://www.readbyqxmd.com/read/29148911/report-from-enhanced-safety-surveillance-of-two-influenza-vaccines-vaxigrip-and-intanza-15%C3%AE-g-in-two-european-countries-during-influenza-season-2016-17-and-comparison-with-2015-16-season
#11
Anne Laure Chabanon, Hélène Bricout, Céline Ballandras, Audrey Souverain, Timothy David Caroe, Karina M Butler
Passive enhanced safety surveillance (ESS) was implemented in the United Kingdom and in the Republic of Ireland for Vaxigrip and Intanza 15µg influenza vaccines during the 2016/17 influenza season. Lessons learned during 2015/16 ESS implementation were integrated and applied towards the current ESS. The primary objective was to estimate the reporting rates of suspected adverse reactions (ARs) occurring within 7 days of vaccination with Vaxigrip or Intanza 15µg. For Vaxigrip (N = 962), 17 vaccinees (1.8%) reported 59 suspected ARs (6...
November 17, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29148834/respiratory-phagocytes-are-implicated-in-enhanced-colibacillosis-in-chickens-co-infected-with-influenza-virus-h9n2-and-esherichia-coli
#12
J Wang, Y Li, Y Yin
1. The aim of this study was to determine the most likely time interval after infection with influenza virus H9N2 for co-infection with Escherichia coli to cause colibacillosis, the importance of lung load of E. coli and the involvement of respiratory phagocytes. 2. Specific pathogen free chickens were inoculated intranasally with 10(6) EID50 of influenza virus or uninfected. After specified time intervals, 10(7) CFU E. coli or phosphate-buffered saline was inoculated. The presence of lesions, the number of respiratory phagocytes in the respiratory lavage fluid and the E...
November 17, 2017: British Poultry Science
https://www.readbyqxmd.com/read/29148400/avian-influenza-a-h7n2-virus-in-human-exposed-to-sick-cats-new-york-usa-2016
#13
Atanaska Marinova-Petkova, Jen Laplante, Yunho Jang, Brian Lynch, Natosha Zanders, Marisela Rodriguez, Joyce Jones, Sharmi Thor, Erin Hodges, Juan A De La Cruz, Jessica Belser, Hua Yang, Paul Carney, Bo Shu, LaShondra Berman, Thomas Stark, John Barnes, Fiona Havers, Patrick Yang, Susan C Trock, Alicia Fry, Larisa Gubareva, Joseph S Bresee, James Stevens, Demetre Daskalakis, Dakai Liu, Christopher T Lee, Mia Kim Torchetti, Sandra Newbury, Francine Cigel, Kathy Toohey-Kurth, Kirsten St George, David E Wentworth, Stephen Lindstrom, C Todd Davis
An outbreak of influenza A(H7N2) virus in cats in a shelter in New York, NY, USA, resulted in zoonotic transmission. Virus isolated from the infected human was closely related to virus isolated from a cat; both were related to low pathogenicity avian influenza A(H7N2) viruses detected in the United States during the early 2000s.
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29148396/multiple-reassorted-viruses-as-cause-of-highly-pathogenic-avian-influenza-a-h5n8-virus-epidemic-the-netherlands-2016
#14
Nancy Beerens, Rene Heutink, Saskia A Bergervoet, Frank Harders, Alex Bossers, Guus Koch
In 2016, an epidemic of highly pathogenic avian influenza A virus subtype H5N8 in the Netherlands caused mass deaths among wild birds, and several commercial poultry farms and captive bird holdings were affected. We performed complete genome sequencing to study the relationship between the wild bird and poultry viruses. Phylogenetic analysis showed that the viruses are related to H5 clade 2.3.4.4 viruses detected in Russia in May 2016 but contained novel polymerase basic 2 and nucleoprotein gene segments and 2 different variants of the polymerase acidic segment...
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29148372/deaths-among-wild-birds-during-highly-pathogenic-avian-influenza-a-h5n8-virus-outbreak-the-netherlands
#15
Erik Kleyheeg, Roy Slaterus, Rogier Bodewes, Jolianne M Rijks, Marcel A H Spierenburg, Nancy Beerens, Leon Kelder, Marjolein J Poen, Jan A Stegeman, Ron A M Fouchier, Thijs Kuiken, Henk P van der Jeugd
During autumn-winter 2016-2017, highly pathogenic avian influenza A(H5N8) viruses caused mass die-offs among wild birds in the Netherlands. Among the ≈13,600 birds reported dead, most were tufted ducks (Aythya fuligula) and Eurasian wigeons (Anas penelope). Recurrence of avian influenza outbreaks might alter wild bird population dynamics.
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29148124/the-safety-of-live-attenuated-influenza-vaccine-in-children-and-adolescents-2-through-17%C3%A2-years-of-age-a-vaccine-safety-datalink-study
#16
Matthew F Daley, Christina L Clarke, Jason M Glanz, Stanley Xu, Simon J Hambidge, James G Donahue, James D Nordin, Nicola P Klein, Steven J Jacobsen, Allison L Naleway, Michael L Jackson, Grace Lee, Jonathan Duffy, Eric Weintraub
PURPOSE: To evaluate the safety of live attenuated influenza vaccine (LAIV) in children 2 through 17 years of age. METHODS: The study was conducted in 6 large integrated health care organizations participating in the Vaccine Safety Datalink (VSD). Trivalent LAIV safety was assessed in children who received LAIV between September 1, 2003 and March 31, 2013. Eighteen pre-specified adverse event groups were studied, including allergic, autoimmune, neurologic, respiratory, and infectious conditions...
November 17, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29147880/targeted-physician-education-and-standardizing-documentation-improves-documented-reporting-with-inflammatory-bowel-disease-quality-measures-in-a-large-academic-and-private-practice
#17
Joseph D Feuerstein, Konstantinos Papamichael, Sara Popejoy, Adam Nadelson, Jeffrey J Lewandowski, Kathy Geissler, Manuel Martinez-Vazquez, Daniel A Leffler, Kim Ariyabuddhiphongs, Chandrashekhar Thukral, Adam S Cheifetz
BACKGROUND: Prior studies have shown poor compliance with quality measures for IBD at academic and private practices. We sought to provide focused interventions to improve compliance and documentation with the IBD measures. METHODS: Two centers, academic practice (AP) and private practice (PP), initially reviewed their compliance with eight established IBD quality measures in consecutive charts. A multi-faceted intervention was developed to improve awareness and documentation of these measures...
November 17, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29146948/a-rapid-response-ultrasensitive-biosensor-for-influenza-virus-detection-using-antibody-modified-boron-doped-diamond
#18
Dawid Nidzworski, Katarzyna Siuzdak, Paweł Niedziałkowski, Robert Bogdanowicz, Michał Sobaszek, Jacek Ryl, Paulina Weiher, Mirosław Sawczak, Elżbieta Wnuk, William A Goddard, Andrés Jaramillo-Botero, Tadeusz Ossowski
According to the World Health Organization (WHO), almost 2 billion people each year are infected worldwide with flu-like pathogens including influenza. This is a contagious disease caused by viruses belonging to the family Orthomyxoviridae. Employee absenteeism caused by flu infection costs hundreds of millions of dollars every year. To successfully treat influenza virus infections, detection of the virus during the initial development phase of the infection is critical, when tens to hundreds of virus-associated molecules are present in the patient's pharynx...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146382/on-the-bias-of-estimates-of-influenza-vaccine-effectiveness-from-test-negative-studies
#19
Kylie E C Ainslie, Meng Shi, Michael Haber, Walter A Orenstein
Estimates of the effectiveness of influenza vaccines are commonly obtained from a test-negative design (TND) study, where cases and controls are patients seeking care for an acute respiratory illness who test positive and negative, respectively, for influenza infection. Vaccine effectiveness (VE) estimates from TND studies are usually interpreted as vaccine effectiveness against medically-attended influenza (MAI). However, it is also important to estimate VE against any influenza illness (symptomatic influenza (SI)) as individuals with SI are still a public health burden even if they do not seek medical care...
November 13, 2017: Vaccine
https://www.readbyqxmd.com/read/29145878/improving-readiness-for-recruitment-through-simulated-trial-activation-the-adjuvant-steroids-in-adults-with-pandemic-influenza-asap-trial
#20
Wei Shen Lim, Garry Meakin, Clare Brittain, Thomas Bewick, Lelia Duley
BACKGROUND: Research in public health emergencies requires trials to be set up in readiness for activation at short notice and in anticipation of limited timelines for patient recruitment. We conducted a simulated activation of a hibernating pandemic influenza clinical trial in order to test trial processes and to determine the value of such simulation in maintaining trial readiness. METHODS: The simulation involved the Nottingham Clinical Trials Unit, one participating hospital, one manufacturing unit and the Investigational Medicinal Product (IMP) supplier...
November 16, 2017: Trials
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