keyword
MENU ▼
Read by QxMD icon Read
search

Influenza virus

keyword
https://www.readbyqxmd.com/read/29244214/mixed-viral-infections-of-the-respiratory-tract-an-epidemiological-study-during-consecutive-winter-seasons
#1
Emmanouil Antalis, Zacharoula Oikonomopoulou, Christine Kottaridi, Athanasios Kossyvakis, Aris Spathis, Maria Magkana, Aikaterini Katsouli, Vassileios Tsagris, Vassiliki Papaevangelou, Andreas Mentis, Sotirios Tsiodras
Introduction The current study aimed to describe the molecular epidemiology of mixed respiratory viral infections during consecutive winter seasons in a tertiary care hospital. Methods Patients with symptoms of respiratory tract infection were evaluated during the 2009-2011 and 2013-15 winter seasons. A clinical microarray technique was used for viral detection. Clinical and epidemiological data were correlated with mixed viral detection and the need for hospitalization. Results In 332 out of 604 (54.4%) evaluated patients (17...
December 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29244026/jnj-63623872-treatment-in-adult-volunteers-experimentally-inoculated-with-live-influenza-virus-a-phase-iia-randomized-double-blind-placebo-controlled-study
#2
Jose M Trevejo, Mohammed Asmal, Johan Vingerhoets, Ramon Polo, Sarah Robertson, Ying Jiang, Tara L Kieffer, Lorant Leopold
BACKGROUND: JNJ-63623872 is a novel, non-nucleoside polymerase complex inhibitor with in vitro activity against influenza A virus, including pandemic 2009 H1N1, H7N9, H5N1 strains as well as neuraminidase-and amantadine-resistant strains. METHODS: Randomized, double-blind, placebo-controlled, Phase 2a study. Healthy volunteers (N = 104) were inoculated with an influenza A/Wisconsin/67/2005 (H3N2) challenge virus. 72 received JNJ-63623872 and 32 placebo. JNJ-63623872 was dosed for 5 days once daily from 24 hours after viral inoculation at four dose levels: 100 mg, 400 mg, loading dose 900/600 mg and loading dose 1200/600 mg...
December 15, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/29244017/implications-of-segment-mismatch-for-influenza-a-virus-evolution
#3
Maria C White, Anice C Lowen
Influenza A virus (IAV) is an RNA virus with a segmented genome. These viral properties allow for the rapid evolution of IAV under selective pressure, due to mutation occurring from error-prone replication and the exchange of gene segments within a co-infected cell, termed reassortment. Both mutation and reassortment give rise to genetic diversity, but constraints shape their impact on viral evolution: just as most mutations are deleterious, most reassortment events result in genetic incompatibilities. The phenomenon of segment mismatch encompasses both RNA- and protein-based incompatibilities between co-infecting viruses and results in the production of progeny viruses with fitness defects...
December 15, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29243406/the-national-burden-of-influenza-associated-severe-acute-respiratory-illness-hospitalization-in-zambia-2011-2014
#4
Andros Theo, Stefano Tempia, Adam L Cohen, Paul Simusika, Edward Chentulo, Chikama Mukwangole Chikamukwa, Mwaka Monze
BACKGROUND: Estimates of influenza-associated hospitalization are limited in low- and middle-income countries, especially in Africa. OBJECTIVE: To estimate the national number of influenza-associated severe acute respiratory illness (SARI) hospitalization in Zambia. METHODS: We conducted active prospective hospital-based surveillance for SARI at the University Teaching Hospital (UTH) situated in Lusaka Province during 2011-2014. Upper respiratory tract samples were tested for influenza virus using a reverse transcriptase polymerase chain reaction assay...
December 15, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29243376/comparison-of-the-three-waves-of-avian-influenza-a-h7n9-virus-circulation-since-live-poultry-markets-were-permanently-closed-in-the-main-urban-areas-in-zhejiang-province-july-2014-june-2017
#5
Wei Cheng, Xiaoxiao Wang, Ye Shen, Zhao Yu, Shelan Liu, Jian Cai, Enfu Chen
BACKGROUND: The sudden increase of the number of human cases infected with avian influenza A(H7N9) virus after September, 2016 raised global concern. OBJECTIVES: To assess the changes of epidemiological characteristics of H7N9 cases since the massive closure of live poultry markets (LPMs)in the main urban areas in Zhejiang province. METHODS: We used descriptive statistics to compare epidemiological characteristics of the three distinct waves of H7N9 cases in Zhejiang province...
December 15, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29243369/burden-of-influenza-respiratory-syncytial-virus-and-other-respiratory-viruses-and-the-completeness-of-respiratory-viral-identification-among-respiratory-inpatients-canada-2003-2014
#6
Dena L Schanzer, Myriam Saboui, Liza Lee, Andrea Nwosu, Christina Bancej
BACKGROUND: A regression-based study design has commonly been used to estimate the influenza burden; however, these estimates are not timely and many countries lack sufficient virological data. Alternative approaches that would permit a timelier assessment of the burden, including a sentinel surveillance approach recommended by the World Health Organization (WHO), have been proposed. We aimed to estimate the hospitalization burden attributable to influenza, respiratory syncytial virus (RSV), and other respiratory viruses (ORV) and to assess both the completeness of viral identification among respiratory inpatients in Canada and the implications of adopting other approaches...
December 15, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29242836/vaccination-with-a-recombinant-h7-hemagglutinin-based-influenza-virus-vaccine-induces-broadly-reactive-antibodies-in-humans
#7
Daniel Stadlbauer, Arvind Rajabhathor, Fatima Amanat, Daniel Kaplan, Abusaleh Masud, John J Treanor, Ruvim Izikson, Manon M Cox, Raffael Nachbagauer, Florian Krammer
Human influenza virus infections with avian subtype H7N9 viruses are a major public health concern and have encouraged the development of effective H7 prepandemic vaccines. In this study, baseline and postvaccination serum samples of individuals aged 18 years and older who received a recombinant H7 hemagglutinin vaccine with and without an oil-in-water emulsion (SE) adjuvant were analyzed using a panel of serological assays. While only a small proportion of individuals seroconverted to H7N9 as measured by the conventional hemagglutination inhibition assay, our data show strong induction of anti-H7 hemagglutinin antibodies as measured by an enzyme-linked immunosorbent assay (ELISA)...
November 2017: MSphere
https://www.readbyqxmd.com/read/29242521/surveillance-of-live-poultry-markets-for-low-pathogenic-avian-influenza-viruses-in-guangxi-province-southern-china-from-2012-2015
#8
Sisi Luo, Zhixun Xie, Zhiqin Xie, Liji Xie, Li Huang, Jiaoling Huang, Xianwen Deng, Tingting Zeng, Sheng Wang, Yanfang Zhang, Jiabo Liu
Infections with low pathogenic avian influenza viruses (LPAIVs) can be mild or asymptomatic in poultry; however, in humans, LPAIVs can cause severe infections and death, as demonstrated by the H7N9 and H10N8 human infection outbreaks in 2013 in China. In this study, we conducted an epidemiological survey of LPAIVs at live poultry markets (LPMs) in Guangxi Province, Southern China, which is near several Southeast Asian countries. From January 2012 to December 2015, we collected 3,813 swab samples from poultry at LPMs in Guangxi...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29242254/correction-for-ver-et-al-the-cellular-factor-nxp2-morc3-is-a-positive-regulator-of-influenza-virus-multiplication
#9
Lorena S Ver, Laura Marcos-Villar, Sara Landeras-Bueno, Amelia Nieto, Juan Ortín
No abstract text is available yet for this article.
January 1, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29241072/combined-efficacy-of-oseltamivir-isoprinosine-and-ellagic-acid-in-influenza-a-h3n2-infected-mice
#10
Elitsa L Pavlova, Lora S Simeonova, Galina A Gegova
Influenza pathogenesis comprises a complex cascade of impaired cellular processes resulting from the viral replication and exaggerated immune response accompanied by reactive oxygen species (ROS) burst and oxidative stress, destructing membranous structures and tissues. By classical virological and biochemical methods we compared and evaluated the therapeutic effects of 2.5mg/kg/day of the antiviral drug - oseltamivir (OS), 500mg/kg/day of the immune modulator - isoprinosine (IP) and 500mg/kg/day of the antioxidant agent ellagic acid (EA) with a focus on their combined activities in influenza H3N2 virus-infected mice...
December 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29241038/through-the-scope-darkly-the-gut-mycobiome-comes-into-focus
#11
Nydiaris Hernández-Santos, Bruce S Klein
The gut microbiome is comprised of microbes from multiple kingdoms, including bacteria, but also fungi, viruses, and perhaps other agents. In this issue of Cell Host & Microbe, Jiang et al. (2017) reveal that fungal monocolonization after antibiotic-mediated depletion of intestinal bacteria prevents colitis and influenza, thus highlighting beneficial roles of fungi.
December 13, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/29239682/safety-and-immunogenicity-of-a-seasonal-trivalent-inactivated-split-influenza-vaccine-a-phase-i-randomized-clinical-trial-in-healthy-serbian-adults
#12
Goran Stevanovic, Lidija Lavadinovic, Svetlana Filipovic Vignjevic, Renée Holt, Katarina Ilic, Francesco Berlanda Scorza, Erin Sparrow, Vera Stoiljkovic, Guido Torelli, Tamra Madenwald, Muriel Socquet, Aleksandra Barac, Yordanka Ilieva-Borisova, Mijomir Pelemis, Jorge Flores
This study was a phase I double-blind, randomized, placebo-controlled trial to evaluate the safety and immunogenicity of a Serbian-produced seasonal trivalent split, inactivated influenza vaccine in healthy adults. The vaccine was manufactured in eggs by the Torlak Institute of Virology, Vaccines and Sera, Belgrade, Serbia and contained A/H1N1, A/H3N2 and B viruses. The clinical trial took place at the Clinical Center of Serbia in Belgrade. Sixty healthy volunteers, aged 18-45 years, were enrolled in the trial...
December 14, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29238328/impact-of-aerosol-dust-on-xmap-multiplex-detection-of-different-class-pathogens
#13
Denis A Kleymenov, Vladimir A Gushchin, Alexander L Gintsburg, Artem P Tkachuk
Environmental or city-scale bioaerosol surveillance can provide additional value for biodefense and public health. Efficient bioaerosol monitoring should rely on multiplex systems capable of detecting a wide range of biologically hazardous components potentially present in air (bacteria, viruses, toxins and allergens). xMAP technology from LuminexTM allows multiplex bead-based detection of antigens or nucleic acids, but its use for simultaneous detection of different classes of pathogens (bacteria, virus, toxin) is questionable...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29237998/neutralization-antibody-response-to-booster-priming-immunization-with-new-equine-influenza-vaccine-in-japan
#14
Takashi Yamanaka, Manabu Nemoto, Hiroshi Bannai, Koji Tsujimura, Tomio Matsumura, Hiroshi Kokado, Sarah Gildea, Ann Cullinane
Equine influenza (EI) vaccine has been widely used. However, the causative EI virus (H3N8) undergoes continuous antigenic drift, and the vaccine strains must be periodically reviewed and if necessary, updated to maintain vaccine efficacy against circulating viruses. In 2016, the Japanese vaccine was updated by replacing the old viruses with the Florida sub-lineage Clade (Fc) 2 virus, A/equine/Yokohama/aq13/2010 (Y10). We investigated the virus neutralization (VN) antibody response to Fc2 viruses currently circulating in Europe, after booster or primary immunization with the new vaccine...
December 14, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29237841/mammalian-adaptation-of-an-avian-influenza-a-virus-involves-stepwise-changes-in-ns1
#15
C Chauché, A Nogales, H Zhu, D Goldfarb, A I Ahmad Shanizza, Q Gu, C R Parrish, L Martínez-Sobrido, J F Marshall, P R Murcia
Influenza A viruses (IAVs) are common pathogens of birds that occasionally establish endemic infections in mammals. The processes and mechanisms that result in IAV mammalian adaptation are poorly understood. The viral non-structural 1 (NS1) protein counteracts the interferon (IFN) response, a central component of the host-species barrier.We characterised the NS1 proteins of equine influenza virus (EIV), a mammalian IAV lineage of avian origin. We showed that evolutionary distinct NS1s counteract the IFN response using different and mutually exclusive mechanisms: while the NS1s of early EIVs block general gene expression by binding to the cellular polyadenylation specific factor 30 (CPSF30), NS1s from more evolved EIVs specifically block the induction of IFN-stimulated genes by interfering with the JAK/STAT pathway...
December 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29237829/unexpected-functional-divergence-of-bat-influenza-virus-ns1-proteins
#16
Hannah L Turkington, Mindaugas Juozapaitis, Nikos Tsolakos, Eugenia Corrales-Aguilar, Martin Schwemmle, Benjamin G Hale
Recently, two influenza A virus (FLUAV) genomes were identified in Central and South American bats. These sequences exhibit notable divergence from classical FLUAV counterparts, and functionally, bat FLUAV glycoproteins lack canonical receptor binding and destroying activity. Nevertheless, other features that distinguish these viruses from classical FLUAVs have yet to be explored. Here, we studied the viral non-structural protein, NS1, a virulence factor that modulates host signaling to promote efficient propagation...
December 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29236486/regioselective-ibx-mediated-synthesis-of-coumarin-derivatives-with-antioxidant-and-anti-influenza-activities
#17
Bruno M Bizzarri, Lorenzo Botta, Eliana Capecchi, Ignacio Celestino, Paola Checconi, Anna T Palamara, Lucia Nencioni, Raffaele Saladino
Different catechol and pyrogallol derivatives have been synthesized by oxidation of coumarins with 2-iodoxybenzoic acid (IBX) in DMSO at 25 °C. A high regioselectivity was observed in accordance with the stability order of the incipient carbocation or radical benzylic-like intermediate. The oxidation was also effective in water under heterogeneous conditions by using IBX supported on polystyrene. The new derivatives showed improved antioxidant effects in the DPPH test and inhibitory activity against the influenza A/PR8/H1N1 virus...
December 13, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/29236360/low-risk-of-avian-influenza-a-h5n6-transmission-to-depopulation-workers-in-korea
#18
Sukhyun Ryu, Jun-Sik Lim, Benjamin J Cowling, Byung Chul Chun
An outbreak of highly pathogenic avian influenza A (H5N6) virus occurred between November 20, 2016 and March 1, 2017 in poultry farms, in the Gyeonggi Province, Republic of Korea. To identify the risk of transmission of H5N6 to depopulation workers, active and passive surveillance was conducted. Virological testing of respiratory swabs with real-time reverse transcription-polymerase chain reaction was performed for workers who reported respiratory symptoms. Among 4633 depopulation workers, 25 reported respiratory symptoms, but all tested negative for H5N6...
December 13, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29236357/live-attenuated-influenza-virus-vaccine-reduces-virus-shedding-of-newborn-piglets-in-the-presence-of-maternal-antibody
#19
Marika Genzow, Christa Goodell, Troy J Kaiser, Wesley Johnson, Marc Eichmeyer
BACKGROUND: Influenza A virus in swine (IAV-S) causes an acute respiratory disease of swine which results in great economic losses in pig production. Major control strategies include the use of killed vaccines (KV) in breeding females to confer passive immunity to their offspring. A bivalent H1N1 and H3N2 NS1-truncated live attenuated IAV-S vaccine has recently become available, which showed promising results in young pigs. OBJECTIVE: The aim of this study was to investigate the effect of an intranasal vaccination of newborn pigs with or without maternally derived antibodies (MDA) on virus shedding (via nasal swabs tested by virus isolation)...
December 13, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29236069/a-portrait-of-the-sialyl-glycan-receptor-specificity-of-the-h10-influenza-virus-hemagglutinin-a-picture-of-an-avian-virus-on-the-verge-of-becoming-a-pandemic
#20
REVIEW
Elena K Schneider, Jian Li, Tony Velkov
Pandemic influenza is a constant global threat to human health. In particular, the pandemic potential of novel avian influenza viruses such as the H10N7 and H10N8 avian strains, which recently managed to cross the species barrier from birds to humans, are always of great concern as we are unlikely to have any prior immunity. Human and avian isolates of H10 influenza display the ability to rapidly adapt to replication in mammalian hosts. Fortunately, so far there is no evidence of efficient human-to-human transmission of any avian influenza virus...
December 13, 2017: Vaccines
keyword
keyword
773
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"