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https://www.readbyqxmd.com/read/28633281/the-sweet-side-of-the-pathogenic-neisseria-the-role-of-glycan-interactions-in-colonisation-and-disease
#1
Tsitsi D Mubaiwa, Evgeny A Semchenko, Lauren E Hartley-Tassell, Christopher J Day, Michael P Jennings, Kate L Seib
Glycomics is a rapidly growing field that focuses on the structure and function of carbohydrates (glycans) in biological systems. Glycan interactions play a major role in infectious disease, at all stages of colonisation and disease progression. Neisseria meningitidis, the cause of meningococcal sepsis and meningitis, and Neisseria gonorrhoeae, which causes the sexually transmitted infection gonorrhoea, are responsible for significant morbidity and mortality worldwide. N. meningitidis displays a range of surface glycosylations including capsule polysaccharide, lipooligosaccharide and O-linked glycoproteins...
June 13, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28613408/pre-admission-antibiotics-for-suspected-cases-of-meningococcal-disease
#2
REVIEW
Thambu D Sudarsanam, Priscilla Rupali, Prathap Tharyan, Ooriapadickal Cherian Abraham, Kurien Thomas
BACKGROUND: Meningococcal disease can lead to death or disability within hours after onset. Pre-admission antibiotics aim to reduce the risk of serious disease and death by preventing delays in starting therapy before confirmation of the diagnosis. OBJECTIVES: To study the effectiveness and safety of pre-admission antibiotics versus no pre-admission antibiotics or placebo, and different pre-admission antibiotic regimens in decreasing mortality, clinical failure, and morbidity in people suspected of meningococcal disease...
June 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28598805/meningococcal-disease-awareness-and-meningoccocal-vaccination-among-greek-students-planning-to-travel-abroad
#3
Androula Pavli, Panagiotis Katerelos, Helena C Maltezou
Objective Students living in dormitories are at increased risk for meningococcal disease. Our aim was to evaluate Greek students planning to study abroad about their level of meningococcal disease awareness and attitudes and practices towards meningococcal vaccination. Methods We studied 231 Greek ERASMUS students using a questionnaire. Results Students had a mean number of 4.1 correct answers out of six questions. In particular 66.5% 79.3%, 72.3% and 82.3% of them answered correctly about the etiology, transmission, epidemiology and treatment of meningococcal disease, respectively...
June 9, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28592578/bacterial-meningitis-in-finland-1995-2014-a-population-based-observational-study
#4
Aleksandra Polkowska, Maija Toropainen, Jukka Ollgren, Outi Lyytikäinen, J Pekka Nuorti
OBJECTIVES: Bacterial meningitis remains an important cause of morbidity and mortality worldwide. Its epidemiological characteristics, however, are changing due to new vaccines and secular trends. Conjugate vaccines against Haemophilus influenzae type b and Streptococcus pneumoniae (10-valent) were introduced in 1986 and 2010 in Finland. We assessed the disease burden and long-term trends of five common causes of bacterial meningitis in a population-based observational study. METHODS: A case was defined as isolation of S...
June 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28545721/impact-of-menafrivac-in-nine-countries-of-the-african-meningitis-belt-2010-15-an-analysis-of-surveillance-data
#5
Caroline L Trotter, Clément Lingani, Katya Fernandez, Laura V Cooper, André Bita, Carol Tevi-Benissan, Olivier Ronveaux, Marie-Pierre Préziosi, James M Stuart
BACKGROUND: In preparation for the introduction of MenAfriVac, a meningococcal group A conjugate vaccine developed for the African meningitis belt, an enhanced meningitis surveillance network was established. We analysed surveillance data on suspected and confirmed cases of meningitis to quantify vaccine impact. METHODS: We compiled and analysed surveillance data for nine countries in the meningitis belt (Benin, Burkina Faso, Chad, Côte d'Ivoire, Ghana, Mali, Niger, Nigeria, and Togo) collected and curated by the WHO Inter-country Support Team between 2005 and 2015...
May 22, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28532981/comparing-laboratory-surveillance-with-the-notifiable-diseases-surveillance-system-in-south-africa
#6
F G Benson, A Musekiwa, L Blumberg, L C Rispel
OBJECTIVE: The aim of this study was to compare laboratory surveillance with the notifiable diseases surveillance system (NDSS) in South Africa. METHODS: Data on three tracer notifiable diseases - measles, meningococcal meningitis, and typhoid - were compared to assess data quality, stability, representativeness, sensitivity and positive predictive value (PPV), using the Wilcoxon and Chi-square tests, at the 5% significance level. RESULTS: For all three diseases, fewer cases were notified than confirmed in the laboratory...
June 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28532434/hierarchical-genomic-analysis-of-carried-and-invasive-serogroup-a-neisseria-meningitidis-during-the-2011-epidemic-in-chad
#7
Kanny Diallo, Kadija Gamougam, Doumagoum M Daugla, Odile B Harrison, James E Bray, Dominique A Caugant, Jay Lucidarme, Caroline L Trotter, Musa Hassan-King, James M Stuart, Olivier Manigart, Brian M Greenwood, Martin C J Maiden
BACKGROUND: Serogroup A Neisseria meningitidis (NmA) was the cause of the 2011 meningitis epidemics in Chad. This bacterium, often carried asymptomatically, is considered to be an "accidental pathogen"; however, the transition from carriage to disease phenotype remains poorly understood. This study examined the role genetic diversity might play in this transition by comparing genomes from geographically and temporally matched invasive and carried NmA isolates. RESULTS: All 23 NmA isolates belonged to the ST-5 clonal complex (cc5)...
May 22, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28495657/outer-membrane-vesicles-extracted-from-neisseria-meningitidis-serogroup-x-for-prevention-of-meningococcal-disease-in-africa
#8
Reinaldo Acevedo, Caridad Zayas, Gunnstein Norheim, Sonsire Fernández, Barbara Cedré, Yisabel Aranguren, Maribel Cuello, Yaimara Rodriguez, Humberto González, Aleida Mandiarote, Marylin Pérez, Maritza Hernández, Mabel Hernández-Cedeño, Domingo González, Sverre-Henning Brorson, Einar Rosenqvist, Lisbeth Naess, Gro Tunheim, Daniel Cardoso, Luis García
Meningococcal disease is caused mainly by serogroups A, B, C, Y, W of N. meningitidis. However, numerous cases of meningitis caused by serogroup X N. meningitidis (MenX) have recently been reported in several African countries. Currently, there are no licensed vaccines against this pathogen and most of the MenX cases have been caused by meningococci from clonal complex (c.c) 181. Detergent extracted meningococcal outer membrane vesicle (dOMV) vaccines have previously shown to be safe and effective against epidemics of serogroup B meningococcal disease in all age groups...
May 8, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28489800/characteristics-and-outcome-of-spontaneous-bacterial-meningitis-in-patients-with-cancer-compared-to-patients-without-cancer
#9
Virginia Pomar, Natividad Benito, Joaquin López-Contreras, Pere Coll, Mercedes Gurguí, Pere Domingo
In cancer patients, who are frequently immunocompromised, bacterial meningitis (BM) can be a severe complication, with a different presentation, etiology, and course, compared to patients without cancer. Our objective is to compare the characteristics and outcomes of BM in patients with and without cancer. A single-center, prospective observational cohort study, conducted between 1982 and 2012, in a tertiary university hospital in Barcelona (Spain). The main outcome measure is in-hospital mortality. We evaluated 659 episodes of BM; 97 (15%) had active cancer...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28487566/the-invasive-neisseria-meningitidis-menc-cc103-from-brazil-is-characterized-by-an-accessory-gene-repertoire
#10
Michel Abanto Marin, Erica Fonseca, Fernando Encinas, Fernanda Freitas, Dhian Almeida Camargo, Roney Santos Coimbra, Ivano de Filippis, Ana Carolina Vicente
Neisseria meningitidis infections are a major issue for global health. The invasive MenC ST-103 clonal complex (CC103) has been the most prevalent in meningococcal outbreaks in Brazil, occurring also in several countries worldwide. Here we have analysed the population structure and accessory genome of MenC CC103 strains from a global perspective. An in-depth phylogenomic analysis revealed a lineage of N. meningitidis causing meningitis in Brazil and the United Kingdom. This lineage was also characterized as harbouring a particular accessory genome composed of CRISPR/Cas and restriction modification systems...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28487240/analysis-of-tlr2-tlr4-and-tlr9-single-nucleotide-polymorphisms-in-children-with-bacterial-meningitis-and-their-healthy-family-members
#11
Ewelina Gowin, Bogna Świątek-Kościelna, Ewelina Kałużna, Jerzy Nowak, Michał Michalak, Jacek Wysocki, Danuta Januszkiewicz-Lewandowska
BACKGROUND: The aim was to analyse TLR2 rs5743708, TLR2 rs4696480, TLR4 rs4986790, TLR9 rs5743836, and TLR9 rs352140 single nucleotide polymorphisms (SNPs) in children with pneumococcal and meningococcal meningitis and their family members. METHODS: The study group consisted of 39 children with bacterial meningitis (25 with meningococcal meningitis and 14 with pneumococcal meningitis) and 49 family members. Laboratory test results and the course of the diseases were analyzed...
May 6, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28478773/clinical-presentation-of-invasive-disease-caused-by-neisseria-meningitidis-serogroup-y-in-sweden-1995-to-2012
#12
O Säll, B Stenmark, M Glimåker, S Jacobsson, P Mölling, P Olcén, H Fredlund
Over the period 1995-2012, the incidence of invasive meningococcal disease (IMD) caused by Neisseria meningitidis serogroup Y (NmY) increased significantly in Sweden. This is mainly due to the emergence of a predominant cluster named strain type YI subtype 1, belonging to the ST-23 clonal complex (cc). The aim of this study was to examine the clinical picture of patients with invasive disease caused by NmY and to analyse whether the predominant cluster exhibits certain clinical characteristics that might explain the increased incidence...
May 8, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28473508/uk-parents-attitudes-towards-meningococcal-group-b-menb-vaccination-a-qualitative-analysis
#13
Cath Jackson, Joanne Yarwood, Vanessa Saliba, Helen Bedford
OBJECTIVES: (1) To explore existing knowledge of, and attitudes, to group B meningococcal disease and serogroup B meningococcal (MenB) vaccine among parents of young children. (2) To seek views on their information needs. DESIGN: Cross-sectional qualitative study using individual and group interviews conducted in February and March 2015, prior to the introduction of MenB vaccine (Bexsero) into the UK childhood immunisation schedule. SETTING: Community centres, mother and toddler groups, parents' homes and workplaces in London and Yorkshire...
May 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28469431/opportunities-and-challenges-of-adolescent-and-adult-vaccination-administration-within-pharmacies-in-the-united-states
#14
REVIEW
Jessica Y Islam, Joann F Gruber, Alexandre Lockhart, Manju Kunwar, Spencer Wilson, Sara B Smith, Noel T Brewer, Jennifer S Smith
Pharmacies have been endorsed as alternative vaccine delivery sites to improve vaccination rates through increased access to services. Our objective was to identify challenges and facilitators to adolescent and adult vaccination provision in pharmacy settings in the United States. We recruited 40 licensed pharmacists in states with different pharmacy vaccination laws. Eligible pharmacists previously administered or were currently administering human papillomavirus (HPV); tetanus, diphtheria, and pertussis (TDAP); or meningitis (meningococcal conjugate vaccine [MCV4]) vaccines to adolescents aged 9 to 17 years...
2017: Biomedical Informatics Insights
https://www.readbyqxmd.com/read/28459837/predicted-strain-coverage-of-a-meningococcal-multicomponent-vaccine-4cmenb-in-portugal
#15
Maria João Simões, Célia Bettencourt, Rosita De Paola, Maria Giuliani, Mariagrazia Pizza, Monica Moschioni, Jorge Machado
OBJECTIVE: Although the incidence of meningococcal disease has been declining over the past decade in Portugal MenB meningococci is still an important cause of meningitis and sepsis. The aim of this study was to estimate the strain coverage of the 4CMenB vaccine in Portugal in order to support health policies for prevention and control of meningococcal disease. METHODS: Since 2002 the clinical and laboratory notification of meningococcal disease is mandatory in Portugal...
2017: PloS One
https://www.readbyqxmd.com/read/28455205/meningococcal-disease-in-the-middle-east-and-africa-findings-and-updates-from-the-global-meningococcal-initiative
#16
REVIEW
Ray Borrow, Dominique A Caugant, Mehmet Ceyhan, Hannah Christensen, Ener Cagri Dinleyici, Jamie Findlow, Linda Glennie, Anne Von Gottberg, Amel Kechrid, Julio Vázquez Moreno, Aziza Razki, Vincent Smith, Muhamed-Kheir Taha, Hassiba Tali-Maamar, Khalid Zerouali
The Global Meningococcal Initiative (GMI) has recently considered current issues in Middle Eastern and African countries, and produced two recommendations: (i) that vaccination of attendees should be considered for some types of mass-gathering events, as some countries mandate for the Hajj, and (ii) vaccination of people with human immunodeficiency virus should be used routinely, because of increased meningococcal disease (MD) risk. Differences exist between Middle Eastern and African countries regarding case and syndrome definitions, surveillance, and epidemiologic data gaps...
April 25, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28441109/meningococcal-serogroup-b-vaccine-knowledge-and-acceptability-among-parents-in-italy
#17
Teresa Morrone, Francesco Napolitano, Luciana Albano, Gabriella Di Giuseppe
This study aimed to evaluate the knowledge and attitudes about Meningococcal meningitis B and the relative vaccine for children among a sample of parents in Italy. A cross-sectional investigation was conducted from October to December 2015 among a sample of 910 parents in the geographic area of Naples and Salerno (Italy). In total, 543 of 910 parents returned a completed questionnaire for a response rate of 59.7%. Almost all parents had heard about meningitis (95.8%), 79.8% of these knew the mode of transmission (through respiratory droplets) and 62...
April 25, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28433330/bivalent-rlp2086-trumenba%C3%A2-development-of-a-well-characterized-vaccine-through-commercialization
#18
Khurram Sunasara, John Cundy, Sriram Srinivasan, Brad Evans, Weiqiang Sun, Scott Cook, Eric Bortell, John Farley, Daniel Griffin, Michele Bailey Piatchek, Katherine Arch-Douglas
The phrase "Process is the Product" is often applied to biologics, including multicomponent vaccines composed of complex components that evade complete characterization. Vaccine production processes must be defined and locked early in the development cycle to ensure consistent quality of the vaccine throughout scale-up, clinical studies, and commercialization. This approach of front-loading the development work helped facilitate the accelerated approval of the Biologic License Application for the well-characterized vaccine bivalent rLP2086 (Trumenba®, Pfizer Inc) in 2014 under Breakthrough Therapy Designation...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28408120/quantifying-population-preferences-around-vaccination-against-severe-but-rare-diseases-a-conjoint-analysis-among-french-university-students-2016
#19
Joy Seanehia, Carole Treibich, Christine Holmberg, Jacqueline Müller-Nordhorn, Valerie Casin, Jocelyn Raude, Judith E Mueller
BACKGROUND: Several concepts are available to explain vaccine decision making by individual and inter-individual factors, including risk perception, social conformism and altruism. However, only a few studies have quantified the weight of these determinants in vaccine acceptance. Using a conjoint analysis tool, we aimed at eliciting preferences in a student population regarding vaccination against a rare, severe and rapidly evolving hypothetical disease, similar to meningococcal serogroup C meningitis or measles...
May 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28389430/an-atypical-form-of-infantile-meningococcal-meningitis
#20
Christelle Xian-Ting Tan, Yang Chern Lim
We describe a rare case of infantile meningococcal (serotype B) meningitis in a 3-month-old Chinese boy with an atypical indolent presentation with prolonged persistent fever despite appropriate antimicrobial therapy likely due to drug fever. The case highlights the need for continued vigilance in identifying similar cases in the future.
April 7, 2017: BMJ Case Reports
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