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Influenza mortality

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https://www.readbyqxmd.com/read/27933286/viral-infection-in-the-development-and-progression-of-pediatric-acute-respiratory-distress-syndrome
#1
REVIEW
Steven Nye, Richard J Whitley, Michele Kong
Viral infections are an important cause of pediatric acute respiratory distress syndrome (ARDS). Numerous viruses, including respiratory syncytial virus (RSV) and influenza A (H1N1) virus, have been implicated in the progression of pneumonia to ARDS; yet the incidence of progression is unknown. Despite acute and chronic morbidity associated with respiratory viral infections, particularly in "at risk" populations, treatment options are limited. Thus, with few exceptions, care is symptomatic. In addition, mortality rates for viral-related ARDS have yet to be determined...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27929758/determinants-of-influenza-vaccination-among-solid-organ-transplant-recipients-attending-sicilian-reference-centre
#2
Vincenzo Restivo, Giovanni Vizzini, Alessandra Mularoni, Cinzia Di Benedetto, Santi Mauro Gioè, Francesco Vitale
In solid organ transplant recipients, influenza infection is commonly associated with higher morbidity and mortality than immunocompetent hosts. Therefore, in these subjects influenza vaccination is of paramount importance. The main objective of the study was to assess compliance to vaccination and analyze factors associated with influenza vaccination of solid organ transplant recipients admitted to the Sicilian solid organ transplant Reference Center IRCCS-ISMETT in Palermo during 2014-2015 influenza season...
December 8, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27924687/the-fluad-case-in-italy-could-it-have-been-dealt-differently
#3
Miriam Levi, Ersilia Sinisgalli, Chiara Lorini, Francesca Santomauro, Martina Chellini, Paolo Bonanni
During the influenza vaccination campaign 2014-2015, the reporting of three deaths within 48 hours of vaccination with Fluad brought the Italian Medicines Agency (AIFA) to pronounce the withdrawal of two batches of vaccine, based on the precautionary principle. Investigations by the Istituto Superiore di Sanità, the National Institute of Health, and by the Pharmacovigilance Risk Assessment Committee (PRAC), the committee at the European Medicines Agency (EMA) responsible for monitoring and assessing the safety profiles of human drugs, concluded that there was a lack of causality between the reported deaths and the vaccines administered...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27924681/factors-associated-with-30-day-mortality-in-elderly-inpatients-with-community-acquired-pneumonia-during-two-influenza-seasons
#4
Núria Torner, Conchita Izquierdo, Núria Soldevila, Diana Toledo, Judith Chamorro, Elena Espejo, Amelia Fernández-Sierra, Angela Domínguez
Community-acquired pneumonia (CAP) refers to pneumonia unrelated to hospitals or extended-care facilities. The aim of this study was to determine factors associated with 30-day mortality in patients with CAP aged ≥65 years admitted to 20 hospitals in seven Spanish regions during the 2013-14 and 2014-15 influenza seasons. Logistic regression was used to identify factors associated with 30-day mortality. The adjusted model included variables selected by backward elimination with a cut off of < 0.02. A total of 1928 CAP cases were recorded; 60...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27919633/greater-activation-of-peripheral-t-follicular-helper-cells-following-high-dose-influenza-vaccine-in-older-adults-forecasts-seroconversion
#5
Mark A Pilkinton, Katherine J Nicholas, Christian M Warren, Rita M Smith, Sandra M Yoder, H Keipp Talbot, Spyros A Kalams
BACKGROUND: Influenza related morbidity and mortality disproportionately impacts older adults. The serologic response to vaccine is diminished in older adults; however, high dose inactivated influenza vaccine (HD IIV) has shown improved rates of seroconversion compared to standard dose (SD IIV). We hypothesize this may be due to the superior ability of high dose vaccine to activate T follicular helper (Tfh) cells and provide B cell dependent T cell help. METHODS: We measured peripheral Tfh (pTfh) activation in 50 community dwelling adults 65years or older who were randomly assigned to receive either the HD IIV or SD IIV...
December 2, 2016: Vaccine
https://www.readbyqxmd.com/read/27919180/investigation-of-a-mortality-cluster-in-wild-adult-yellow-eyed-penguins-megadyptes-antipodes-at-otago-peninsula-new-zealand
#6
Brett Gartrell, David Agnew, Maurice Alley, Tim Carpenter, Hye Jeong Ha, Laryssa Howe, Stuart Hunter, Kate McInnes, Rex Munday, Roe Wendi, Young Melanie
We investigated an epidemic mortality cluster of yellow-eyed penguins (Megadyptes antipodes) that involved 67 moribund or dead birds found on various beaches of the Otago Peninsula, New Zealand, between January 21 and March 20, 2013. Twenty-four carcases were examined postmortem. Histological lesions of pulmonary, hepatic and splenic erythrophagocytosis and haemosiderosis were found in 23 of 24 birds. Fifteen birds also had haemoglobin-like protein droplets within renal tubular epithelial cells. Despite consistent histological lesions, a cause of death could not be established...
December 6, 2016: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/27918208/investigational-hemagglutinin-targeted-influenza-virus-inhibitors
#7
Li-Yan Zeng, Jie Yang, Shuwen Liu
Seasonal influenza and pandemic outbreaks typically result in high mortality and morbidity associated with severe economic burdens. Vaccines and anti-influenza drugs have made great contributions to control the infection. However, antigenic drifts and shifts allow influenza viruses to easily escape immune neutralization and antiviral drug activity. Hemagglutinin (HA)is an important envelope protein for the entry of influenza viruses into host cells, thus, HA-targeted agents may be potential anti-influenza drugs...
December 5, 2016: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/27917412/zbp1-dai-is-an-innate-sensor-of-influenza-virus-triggering-the-nlrp3-inflammasome-and-programmed-cell-death-pathways
#8
Teneema Kuriakose, Si Ming Man, R K Subbarao Malireddi, Rajendra Karki, Sannula Kesavardhana, David E Place, Geoffrey Neale, Peter Vogel, Thirumala-Devi Kanneganti
The interferon-inducible protein Z-DNA binding protein 1 (ZBP1, also known as DNA-dependent activator of IFN-regulatory factors (DAI) and DLM-1) was identified as a dsDNA sensor, which instigates innate immune responses. However, this classification has been disputed and whether ZBP1 functions as a pathogen sensor during an infection has remained unknown. Herein, we demonstrated ZBP1-mediated sensing of the influenza A virus (IAV) proteins NP and PB1, triggering cell death and inflammatory responses via the RIPK1-RIPK3-Caspase-8 axis...
August 5, 2016: Science Immunology
https://www.readbyqxmd.com/read/27917346/neonatal-bacterial-meningitis-in-tikur-anbessa-specialized-hospital-ethiopia-a-10-year-retrospective-review
#9
Melese Abate Reta, Tamrat Abebe Zeleke
BACKGROUND: Bacterial meningitis is still a major public health threat in developing countries. It is an overwhelming infection with a high morbidity and mortality rate, especially in neonates. The aim of this study was to determine the prevalence and etiological agents that cause bacterial neonatal meningitis at Tikur Anbessa Specialized Hospital (TASH). METHODS: This is a retrospective analysis of 1189 cerebrospinal fluid (CSF) specimens submitted to the bacteriology laboratory of TASH for culture from 2001 to 2010...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27914742/influenza-virus-specific-antibody-dependent-cellular-cytoxicity-induced-by-vaccination-or-natural-infection
#10
Rory D de Vries, Nella J Nieuwkoop, Mark Pronk, Erwin de Bruin, Geert Leroux-Roels, Elisabeth G W Huijskens, Rob S van Binnendijk, Florian Krammer, Marion P G Koopmans, Guus F Rimmelzwaan
Influenza viruses are responsible for substantial morbidity and mortality during seasonal epidemics. Vaccination is the most effective method to prevent infection, however due to antigenic drift of the viral surface protein hemagglutinin (HA), annual influenza virus vaccination is required. In addition to seasonal viruses, certain (avian) influenza A viruses of other subtypes, like H5N1 or H7N9, cause sporadic zoonotic infections. Therefore, the availability of game-changing novel vaccines that induce "universal" immune responses to a wide variety of influenza A virus subtypes is highly desirable...
November 30, 2016: Vaccine
https://www.readbyqxmd.com/read/27913620/pb1-f2-derived-from-avian-influenza-a-virus-h7n9-induces-inflammation-via-activation-of-the-nlrp3-inflammasome
#11
Anita Pinar, Jennifer K Dowling, Natalie J Bitto, Avril B Robertson, Eicke Latz, Cameron R Stewart, Grant R Drummond, Matthew A Cooper, Julie L McAuley, Michelle D Tate, Ashley Mansell
The emergence of avian H7N9 influenza A virus (IAV) in humans with associated high mortality, has highlighted the threat of a potential pandemic. Fatal H7N9 infections are characterised by hyperinflammation and increased cellular infiltrates in the lung. Currently there are limited therapies to address the pathologies associated with H7N9 infection and what virulence factors may contribute to these pathologies. We have found that PB1-F2 derived from H7N9 activates the NLRP3 inflammasome and induces lung inflammation and cellular recruitment that is NLRP3 dependent...
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27910867/effects-of-annual-influenza-vaccination-on-morbidity-and-mortality-in-patients-with-systemic-lupus-erythematosus-a-nationwide-cohort-study
#12
Chi-Ching Chang, Yu-Sheng Chang, Wei-Sheng Chen, Yi-Hsuan Chen, Jin-Hua Chen
Studies on the clinical efficacy of influenza vaccination on patients with systemic lupus erythematosus (SLE) are scant. The present study compared the incidence of hospitalization, morbidity, and mortality in patients with SLE between cohorts with and without influenza vaccination. We used the Taiwan's insurance claims data between 2001 and 2012 for identifying annual adult patients with SLE with (N = 1765) and without (N = 8360) influenza vaccination. The incidence rate ratio and hazard ratio (HR) for morbidities and mortality were measured for the vaccine and nonvaccine cohorts...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903461/clinical-characteristics-and-outcome-of-respiratory-syncytial-virus-infection-among-adults-hospitalized-with-influenza-like-illness-in-france
#13
Paul Loubet, Nezha Lenzi, Martine Valette, Vincent Foulongne, Anne Krivine, Nadhira Houhou, Gisele Lagathu, Sylvie Rogez, Sophie Alain, Xavier Duval, Florence Galtier, Deborah Postil, Pierre Tattevin, Philippe Vanhems, Fabrice Carrat, Bruno Lina, Odile Launay
OBJECTIVES: The aim of this study was to analyze characteristics and outcome of RSV infection in adults hospitalized with influenza-like illness (ILI). METHODS: Patients hospitalized with ILI were included in this prospective, multicenter study carried out in six French hospitals during three consecutive influenza seasons (2012-2015). RSV and other respiratory viruses were detected by multiplex PCR in nasopharyngeal swabs. Risk factors for RSV infection were identified by backward stepwise logistic regression analysis...
November 26, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27903058/space-time-epidemiology-and-effect-of-meteorological-parameters-on-influenza-like-illness-in-phitsanulok-a-northern-province-in-thailand
#14
Prakash Madhav Nimbalkar, Nitin Kumar Tripathi
Influenza-like illness (ILI) is an acute respiratory disease that remains a public health concern for its ability to circulate globally affecting any age group and gender causing serious illness with mortality risk. Comprehensive assessment of the spatio-temporal dynamics of ILI is a prerequisite for effective risk assessment and application of control measures. Though meteorological parameters, such as rainfall, average relative humidity and temperature, influence ILI and represent crucial information for control of this disease, the relation between the disease and these variables is not clearly understood in tropical climates...
November 21, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27899865/necrotizing-pneumonia-caused-by-h1n1-virus-in-a-child-with-total-anomalous-pulmonary-venous-connection-after-cardiac-surgery
#15
Mehmet G Ramoğlu, Tayfun Uçar, Tanıl Kendirli, Zeynep Eyileten, Semra Atalay
Total anomalous pulmonary venous connection is a rare form of congenital heart disease, occurring in only 1.5% of children with congenital heart disease. Although the mortality and morbidity of total anomalous pulmonary venous connection have decreased dramatically due to improvements in surgery, postoperative pulmonary venous obstruction is still a cause of late mortality in patients with corrected total anomalous pulmonary venous connection. Influenza A H1N1, the most common cause of human influenza in 2009, may cause pneumonia presenting with increased disease severity...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27895132/protection-against-streptococcus-pneumoniae-invasive-pathogenesis-by-a-protein-based-vaccine-is-achieved-by-suppression-of-nasopharyngeal-bacterial-density-during-influenza-a-virus-co-infection
#16
M Nadeem Khan, Qingfu Xu, Michael E Pichichero
An increase in Streptococcus pneumoniae (Spn) nasopharyngeal (NP) colonization density during a viral co-infection initiates pathogenesis. To mimic natural Spn pathogenesis, we commensally colonized the NP of adult C57BL/6 mice with Spn serotypes (STs) 6A or 8, and then co-infected with mouse-adapted H1N1 influenza A virus (PR/8/34). Spn established effective commensal colonization and Influenza co-infection caused Spn NP density to increase, resulting in bacteremia and mortality. We then studied histidine triad protein D (PhtD), a Spn adhesin vaccine candidate, for its ability to prevent invasive Spn disease in adult and infant mice...
November 28, 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27892498/sensitization-with-vaccinia-virus-encoding-h5n1-hemagglutinin-restores-immune-potential-against-h5n1-influenza-virus
#17
Fumihiko Yasui, Yasushi Itoh, Ai Ikejiri, Masahiro Kitabatake, Nobuo Sakaguchi, Keisuke Munekata, Shintaro Shichinohe, Yukiko Hayashi, Hirohito Ishigaki, Misako Nakayama, Yoshihiro Sakoda, Hiroshi Kida, Kazumasa Ogasawara, Michinori Kohara
H5N1 highly pathogenic avian influenza (H5N1 HPAI) virus causes elevated mortality compared with seasonal influenza viruses like H1N1 pandemic influenza (H1N1 pdm) virus. We identified a mechanism associated with the severe symptoms seen with H5N1 HPAI virus infection. H5N1 HPAI virus infection induced a decrease of dendritic cell number in the splenic extrafollicular T-cell zone and impaired formation of the outer layers of B-cell follicles, resulting in insufficient levels of antibody production after infection...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27891512/a-de-o-acylated-lipooligosaccharide-based-adjuvant-system-promotes-antibody-and-th1-type-immune-responses-to-h1n1-pandemic-influenza-vaccine-in-mice
#18
Ji In Ryu, Shin Ae Park, Seo Ri Wui, Ara Ko, Ji Eun Han, Jung Ah Choi, Man Ki Song, Kwang Sung Kim, Yang Je Cho, Na Gyong Lee
Vaccine adjuvants are agents that are used to promote immune responses to vaccine antigens and thereby to enhance the protective efficacy of the vaccines. In this study, we investigated the adjuvant activity of CIA06, an adjuvant system that is composed of a toll-like receptor 4 agonist de-O-acylated lipooligosaccharide (dLOS) and aluminum hydroxide, on the H1N1 pandemic influenza vaccine Greenflu-S® in mice. CIA06 significantly enhanced influenza-specific serum IgG, hemagglutination-inhibition, and virus-neutralizing antibody titers, which eliminated vaccine dose-dependency in the antibody response...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27886846/are-we-facing-a-noncommunicable-disease-pandemic
#19
REVIEW
Luke Allen
The global boom in premature mortality and morbidity from noncommunicable diseases (NCDs) shares many similarities with pandemics of infectious diseases, yet public health professionals have resisted the adoption of this label. It is increasingly apparent that NCDs are actually communicable conditions, and although the vectors of disease are nontraditional, the pandemic label is apt. Arguing for a change in terminology extends beyond pedantry as the move carries serious implications for the public health community and the general public...
November 22, 2016: Journal of Epidemiology and Global Health
https://www.readbyqxmd.com/read/27885562/respiratory-syncytial-virus-and-influenza-are-the-key-viral-pathogens-in-children-2%C3%A2-years-hospitalized-with-bronchiolitis-and-pneumonia-in-islamabad-pakistan
#20
Uzma Bashir, Nadia Nisar, Yasir Arshad, Muhammad Masroor Alam, Asiya Ashraf, Hajra Sadia, Birjees Mazher Kazi, Syed Sohail Zahoor Zaidi
Pneumonia remains a leading cause of morbidity and mortality in developing countries. Comprehensive surveillance data are needed to review the prevention and control strategies. We conducted active surveillance of acute lower respiratory infections among children aged <2 years hospitalized at two hospitals of Islamabad, Pakistan. Viral etiology was determined using real-time PCR on respiratory specimens collected during March 2011-April 2012. The overall mean age was 7.83 ± 5.25 months while no statistical difference between age or sex distribution of patients with positive and negative viral etiology (p > 0...
November 24, 2016: Archives of Virology
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