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https://www.readbyqxmd.com/read/28738364/risk-factors-for-community-acquired-pneumonia-in-adults-a-systematic-review-of-observational-studies
#1
Jordi Almirall, Mateu Serra-Prat, Ignasi Bolíbar, Valentina Balasso
We performed a systematic review of the literature to establish conclusive evidence of risk factors for community-acquired pneumonia (CAP). Observational studies (cross-sectional, case-control, and cohort studies) the primary outcome of which was to assess risk factors for CAP in both hospitalized and ambulatory adult patients with radiologically confirmed pneumonia were selected. The Newcastle-Ottawa Scale specific for cohort and case-control designs was used for quality assessment. Twenty-nine studies (20 case-control, 8 cohort, and 1 cross-sectional) were selected, with 44...
July 25, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28737877/-neisseria-gonorrhoeae-an-infrequent-causal-agent-of-periorbital-cellulitis-in-a-child
#2
Rocío Del P Pereira-Ospina, Javier Y Pinzón-Salamanca, José M Suescún-Vargas, Yuli Guzmán-Prado
Periorbital cellulitis is a very common disease in pediatric population, it describes an infection involving the adjacent soft tissues anterior to the orbital septum. Pathogens involved are generally Gram-positive cocci after introduction of Haemophilus influenzae vaccine. We report a case of Neisseria gonorrhoeae periorbital cellulitis associated with bacterial conjunctivitis in a child. There are few cases reported in the literature with this microorganism as the causal agent. With this case, we would like to emphasize the importance to do a culture of the ocular secretion (if it exists) because this allowed us to determine an infrequent agent of this disease...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28737769/local-lung-hypoxia-determines-epithelial-fate-decisions-during-alveolar-regeneration
#3
Ying Xi, Thomas Kim, Alexis N Brumwell, Ian H Driver, Ying Wei, Victor Tan, Julia R Jackson, Jianming Xu, Dong-Kee Lee, Jeffrey E Gotts, Michael A Matthay, John M Shannon, Harold A Chapman, Andrew E Vaughan
After influenza infection, lineage-negative epithelial progenitors (LNEPs) exhibit a binary response to reconstitute epithelial barriers: activating a Notch-dependent ΔNp63/cytokeratin 5 (Krt5) remodelling program or differentiating into alveolar type II cells (AEC2s). Here we show that local lung hypoxia, through hypoxia-inducible factor (HIF1α), drives Notch signalling and Krt5(pos) basal-like cell expansion. Single-cell transcriptional profiling of human AEC2s from fibrotic lungs revealed a hypoxic subpopulation with activated Notch, suppressed surfactant protein C (SPC), and transdifferentiation toward a Krt5(pos) basal-like state...
July 24, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28737468/economic-evaluations-of-haemophilus-influenzae-type-b-hib-vaccine-a-systematic-review
#4
Bunchai Chongmelaxme, Maythika Hammanee, Wariya Phooaphirak, Surachai Kotirum, Raymond Hutubessy, Nathorn Chaiyakunapruk
AIMS: World Health Organization (WHO) recommends the use of Haemophilus influenzae type b (Hib) conjugate vaccines but only China and Thailand have not used Hib vaccination in their national immunization programs. This systematic review aimed to update published economic evaluations of Hib vaccinations and to determine factors that potentially affected their cost-effectiveness. METHODS: Searching was performed from the inception until December 2015 using 13 databases: CAB direct; CEA registry; EconLit; EMBASE; E-library; NHSEED; PAHO; POPLINE; PubMed; Redalyc project; RePEc; SciELO and WHOLIS...
July 24, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28737338/-attitudes-and-practices-towards-seasonal-influenza-vaccination-amongst-french-hospital-staff
#5
Max Maurette, Pierre Pinzelli, Aleksandar Yordanov Sandev, Francis Nock
<ce:para>This survey intends to describe the attitudes towards vaccination amongst the hospital staff in the region of Castres, in the south-west of France, and their influenza vaccination coverage. A questionnaire was attached to all pay slips in March 2014 and 471 questionnaires were completed (return rate: 22.4%). Seasonal influenza vaccination coverage rate was similar to that reported in other French surveys. Paramedical personnel were less commonly immunized against influenza compared to medical personnel and age was the major factor associated with vaccination...
April 27, 2017: Santé Publique: Revue Multidisciplinaire Pour la Recherche et L'action
https://www.readbyqxmd.com/read/28737075/socialization-indifference-and-convenience-exploring-the-uptake-of-influenza-vaccine-among-medical-students-and-early-career-doctors
#6
Rhiannon Edge, Dawn Goodwin, Rachel Isba, Thomas Keegan
The Chief Medical Officer recommends that all health care workers receive an influenza vaccination annually. High vaccination coverage is believed to be the best protection against the spread of influenza within a hospital, although uptake by health care workers remains low. We conducted semistructured interviews with seven medical students and nine early career doctors, to explore the factors informing their influenza vaccination decision making. Data collection and analysis took place iteratively, until theoretical saturation was achieved, and a thematic analysis was performed...
July 1, 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28737040/potential-of-small-molecule-fungal-metabolites-in-antiviral-chemotherapy
#7
Biswajit G Roy
Various viral diseases, such as acquired immunodeficiency syndrome, influenza, and hepatitis, have emerged as leading causes of human death worldwide. Scientific endeavor since invention of DNA-dependent RNA polymerase of pox virus in 1967 resulted in better understanding of virus replication and development of various novel therapeutic strategies. Despite considerable advancement in every facet of drug discovery process, development of commercially viable, safe, and effective drugs for these viruses still remains a big challenge...
July 23, 2017: Antiviral Chemistry & Chemotherapy
https://www.readbyqxmd.com/read/28736803/genetic-and-pathogenic-analysis-of-a-novel-reassortant-h5n6-influenza-virus-isolated-from-waterfowl-in-south-korea-in-2016
#8
In Hong Lee, Seo Yeon Jin, Sang Heui Seo
A novel reassortant highly pathogenic H5N6 influenza virus was isolated from waterfowl in South Korea in 2016. Seven genes of this virus originated from an H5N6 virus from China, whereas the remaining gene, PB1, was from an unknown virus. This virus productively infected pigs, which showed viral shedding through their noses and developed severe interstitial pneumonia.
July 24, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28736677/no-evidence-of-on-farm-circulation-of-avian-influenza-h5-subtype-in-ca-mau-province-southern-vietnam-march-2016-january-2017
#9
Nguyen Thi Le Thanh, Nguyen Ha Thao Vy, Huynh Thi Ai Xuyen, Huynh Thi Phuong, Phung Ngoc Tuyet, Nguyen Thanh Huy, Benjamin Nguyen-Van-Yen, Ha Minh Lam, Maciej F Boni
BACKGROUND: Subtype H5N1 avian influenza viruses, both high pathogenicity and low pathogenicity, have been enzootic in Vietnam since 2001.  The viruses are readily identified at live bird markets, but virus prevalence on smallholder poultry is typically zero or very low.  If the true direction of the viral transmission chain is farm to market, it is unknown why farm prevalence should be low when market prevalence is moderate to high. METHODS: We established a cohort of 50 smallholder poultry farms in Ca Mau province in the Mekong Delta region of Vietnam...
May 5, 2017: PLoS Currents
https://www.readbyqxmd.com/read/28736201/text-message-reminders-for-vaccination-of-adolescents-with-chronic-medical-conditions-a-randomized-clinical-trial
#10
Annika M Hofstetter, Angela Barrett, Stewin Camargo, Susan L Rosenthal, Melissa S Stockwell
BACKGROUND: Many adolescents with chronic medical conditions (CMCs) are at risk of vaccine-preventable infection, yet are frequently under-vaccinated. Text message reminders, particularly those with embedded educational information, have been shown to increase general pediatric vaccination. Their use has not been studied specifically among adolescents with CMCs. METHODS: Eligible parents of adolescents with CMCs receiving care at one of 4 academically-affiliated pediatric clinics and requiring human papillomavirus (first dose), influenza, and/or pneumococcal polysaccharide vaccines were randomized in 4 consecutive cohorts to receive text message vaccine reminders with or without embedded educational information ("educational" vs...
July 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28736045/comparative-effectiveness-of-high-dose-versus-standard-dose-influenza-vaccination-on-numbers-of-us-nursing-home-residents-admitted-to-hospital-a-cluster-randomised-trial
#11
Stefan Gravenstein, H Edward Davidson, Monica Taljaard, Jessica Ogarek, Pedro Gozalo, Lisa Han, Vincent Mor
BACKGROUND: Immune responses to influenza vaccines decline with age, reducing clinical effectiveness. We compared the effect of the more immunogenic high-dose trivalent influenza vaccine with a standard-dose vaccine to identify the effect on reducing hospital admissions of nursing home residents in the USA. METHODS: We did a single-blind, pragmatic, comparative effectiveness, cluster-randomised trial with a 2 × 2 factorial design. Medicare-certified nursing homes in the USA located within 50 miles of a Centers for Disease Control and Prevention influenza reporting city were recruited, so long as the facilities were not located in a hospital, had more than 50 long-stay residents, had less than 20% of the population aged under 65 years, and were not already planning to administer the high-dose influenza vaccine to residents...
July 20, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28735583/fever-and-infections-during-pregnancy-and-psychosis-like-experiences-in-the-offspring-at-age-11-a-prospective-study-within-the-danish-national-birth-cohort
#12
J W Dreier, G Berg-Beckhoff, A M N Andersen, E Susser, M Nordentoft, K Strandberg-Larsen
BACKGROUND: Maternal exposures to fever and infections in pregnancy have been linked to subsequent psychiatric morbidity in the child. This study examined whether fever and common infections in pregnancy were associated with psychosis-like experiences (PLEs) in the child. METHODS: A longitudinal study of 46 184 children who participated in the 11-year follow-up of the Danish National Birth Cohort was conducted. Pregnant women were enrolled between 1996 and 2002 and information on fever, genitourinary infections, respiratory tract infection, and influenza-like illness during pregnancy was prospectively collected in two interviews during pregnancy...
July 24, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28735080/recombinant-truncated-e-protein-as-a-new-vaccine-candidate-against-nontypeable-h-influenzae-its-expression-and-immunogenic-evaluation
#13
Ava Behrouzi, Saeid Bouzari, Farzam Vaziri, Abolfazl Fateh, Parviz Afrough, Atefeh Davoudi Vijeh Motlagh, Seyed Davar Siadat
Protein E (PE) is a conserved entity observed in both nontypeable Haemophilus influenzae (NTHi) and encapsulated H. influenzae. This is a small surface lipoprotein, consisting of only 160 amino acids, involved in the adhesion of H. influenzae to various types of epithelial cells. A 384-bp-long fragment from NTHi PE was cloned into the prokaryotic expression vector pBAD-gIIIA. The recombinant protein was expressed with arabinose and then purified by affinity purification on an Ni-NTA agarose matrix. BALB/c mice were immunized by subcutaneous injection with purified recombinant truncated PE mixed with an alum adjuvant...
July 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28734805/c-reactive-protein-mediating-immunopathological-lesions-a-potential-treatment-option-for-severe-influenza-a-diseases
#14
Rongbao Gao, Lijie Wang, Tian Bai, Ye Zhang, Hong Bo, Yuelong Shu
Severe influenza diseases with high mortality have been frequently reported, especially in those patients infected with avian influenza A (H5N1, H7N9 or H10N8) or during a pandemic. Respiratory distress, which is attributed to alveolar damage associated with immunopathological lesions, is the most common cause of death. There is a wealth of information on pathogenesis or treatment options. In this study, we showed that high levels of C-reactive protein (CRP) were induced and correlated with complement activation in patients infected with severe influenza A (H5N1, H7N9 or H10N8), and higher levels were induced in fatal patients than in survivors...
July 13, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28734654/schlafen-14-slfn14-is-a-novel-antiviral-factor-involved-in-the-control-of-viral-replication
#15
Rak-Kyun Seong, Seong-Wook Seo, Ji-Ae Kim, Sarah J Fletcher, Neil V Morgan, Mukesh Kumar, Young-Ki Choi, Ok Sarah Shin
Schlafen (SLFN) proteins have been suggested to play important functions in cell proliferation and immune cell development. In this study, we determined the antiviral activities of putative RNA-helicase domain-containing SLFN14. Murine SLFN14 expression was specifically induced by TLR3-mediated pathways and type I interferon (IFN) in RAW264.7 mouse macrophages. To examine the role of SLFN during viral infection, cells were infected with either wild-type PR8 or delNS1/PR8 virus. SLFN14 expression was specifically induced following influenza virus infection...
July 11, 2017: Immunobiology
https://www.readbyqxmd.com/read/28734617/epidemiology-evolution-and-pathogenesis-of-h7n9-influenza-viruses-in-five-epidemic-waves-since-2013-in-china
#16
REVIEW
Shuo Su, Min Gu, Di Liu, Jie Cui, George F Gao, Jiyong Zhou, Xiufan Liu
H7N9 influenza viruses were first isolated in 2013 and continue to cause human infections. H7N9 infections represent an ongoing public health threat that has resulted in 1344 cases with 511 deaths as of April 9, 2017. This highlights the continued threat posed by the current poultry trade and live poultry market system in China. Until now, there have been five H7N9 influenza epidemic waves in China; however, the steep increase in the number of humans infected with H7N9 viruses observed in the fifth wave, beginning in October 2016, the spread into western provinces, and the emergence of highly pathogenic (HP) H7N9 influenza outbreaks in chickens and infection in humans have caused domestic and international concern...
July 19, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28734518/influenza-a-global-perspective
#17
REVIEW
Elizabeth T Rotrosen, Kathleen M Neuzil
Influenza is a common respiratory illness in children and accounts for substantial morbidity and mortality on an annual basis. Inactivated and live influenza vaccines are approved for children and are safe and efficacious. The absolute effectiveness of vaccines varies by year and is influenced by several factors. The reason for recent reduced performance of live-attenuated influenza vaccines is poorly understood, and active research is ongoing. Vaccination programs are less common in tropical and subtropical countries, where unique logistical and feasibility challenges exist...
August 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28734359/fast-multiplex-analysis-of-antibodies-in-complex-sample-matrix-using-the-microfluidic-evalution%C3%A2-platform
#18
Karen Leirs, Pelin Leblebici, Jeroen Lammertyn, Dragana Spasic
Biosensor development requires comprehensive research for establishing the optimal bioassay conditions that determine the final kinetics, sensitivity and specificity. Different systems have been developed to study bioreceptor-target interactions but they often have drawbacks, such as long hands-on time, low throughput, high sample consumption and high cost. In this work, the potential of the novel microfluidic Evalution™ platform has been evaluated for developing sandwich-based assays in a fast and high-throughput fashion...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734139/%C3%AE-nfluenza-a-h3n2-genetic-variants-in-vaccinated-patients-in-northern-greece
#19
A Melidou, G Gioula, M Exindari, E Ioannou, K Gkolfinopoulou, T Georgakopoulou, S Tsiodras, A Papa
BACKGROUND: Influenza A(H3N2) viruses predominated during the influenza 2016/2017 season and showed extensive genetic diversification. A high vaccination failure rate was noticed during the 2016/17 season in Greece, especially among the elderly. OBJECTIVES: The scope of the study was to investigate the genetic characteristics of A(H3N2) circulating viruses and viruses detected in vaccinated patients. STUDY DESIGN: Virus samples originated from vaccinated and unvaccinated patients, obtained at the National Influenza Centre for northern Greece...
July 14, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28733696/vaccination-against-influenza-at-a-european-pediatric-cancer-center-immunization-rates-and-attitudes-among-staff-patients-and-their-families
#20
Aleksandra Pettke, Sophie Jocham, Andreas Wiener, Andreas Löcken, Judith Groenefeld, Martina Ahlmann, Andreas H Groll
BACKGROUND: Influenza is an important cause of infectious morbidity in pediatric cancer patients. We conducted a single-center survey to explore adherence and attitudes towards the recommended annual influenza vaccination. METHODS: Self-administered, standardized questionnaires were distributed to 143 staff members and 264 families. Items analyzed included demographic data, knowledge about influenza, history of prior influenza infections and vaccinations, routes of information and education, and attitudes towards the recommended influenza...
July 21, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
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