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https://www.readbyqxmd.com/read/28723791/arthritis-secondary-to-meningococcal-disease-a-case-series-of-7-patients
#1
Vanina Masson-Behar, Hervé Jacquier, Pascal Richette, Jean-Marc Ziza, Valérie Zeller, Christophe Rioux, Baptiste Coustet, Philippe Dieudé, Sébastien Ottaviani
Arthritis secondary to invasive meningococcemia is rare and has been described as a direct result of bacteremia or as immunoallergic-type arthritis, related to the immune complex. Only a few case series have been reported.This multicenter study aimed to describe the clinical characteristics and therapeutic outcomes of arthritis secondary to meningococcal infection.We performed a 5-year retrospective study. We included all patients with inflammatory joint symptoms and proven meningococcal disease defined by the identification of Neisseria meningitidis in blood, cerebrospinal fluid, or synovial fluid...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28720847/the-glycointeractome-of-serogroup-b-neisseria-meningitidis-strain-mc58
#2
Tsitsi D Mubaiwa, Lauren E Hartley-Tassell, Evgeny A Semchenko, Freda E-C Jen, Yogitha N Srikhanta, Christopher J Day, Michael P Jennings, Kate L Seib
Neisseria meningitidis express numerous virulence factors that enable it to interact with diverse microenvironments within the host, during both asymptomatic nasopharyngeal colonization and invasive disease. Many of these interactions involve bacterial or host glycans. In order to characterise the meningococcal glycointeractome, glycan arrays representative of structures found on human cells, were used as a screening tool to investigate host glycans bound by N. meningitidis. Arrays probed with fluorescently labelled wild-type MC58 revealed binding to 223 glycans, including blood group antigens, mucins, gangliosides and glycosaminoglycans...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719502/safety-of-quadrivalent-meningococcal-conjugate-vaccine-in-children-2-10-years
#3
Sara Y Tartof, Lina S Sy, Bradley K Ackerson, Rulin C Hechter, Mendel Haag, Jeffrey M Slezak, Yi Luo, Christine A Fischetti, Harp S Takhar, Yan Miao, Zendi Solano, Steven J Jacobsen, Hung-Fu Tseng
BACKGROUND: Quadrivalent meningococcal conjugate vaccine is recommended for children, adolescents, and adults at increased risk of meningococcal disease. In 2011, MenACWY-CRM (Menveo, GSK) was approved for children aged 2-10 years in the U.S. Although no safety concerns arose from clinical trials, it remains important to monitor its safety in routine clinical settings. METHODS: Kaiser Permanente Southern California members 2-10 years old who received MenACWY-CRM between September 2011 and September 2014 were included...
July 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28711456/a-cross-sectional-study-assessing-the-pharyngeal-carriage-of-neisseria-meningitidis-in-subjects-aged-1-24-years-in-the-city-of-embu-das-artes-s%C3%A3-o-paulo-brazil
#4
Lily Yin Weckx, Rosana Fiorini Puccini, Antónia Machado, Maria Gisele Gonçalves, Suely Tuboi, Eliana de Barros, Raghavendra Devadiga, Eduardo Ortega-Barria, Romulo Colindres
Meningococcal carriage is a prerequisite for invasive infection. This cross-sectional study assessed the pharyngeal carriage prevalence in healthy subjects aged 1-24 years in Embu das Artes city, São Paulo, Brazil. Pharyngeal swabs were examined for the presence of Neisseria meningitidis. The isolates were tested for different serogroups using agglutination and polymerase chain reaction. A logistic regression model assessed any independent association between Neisseria meningitidis carriage and various risk factors...
July 13, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28705462/effectiveness-of-a-group-b-outer-membrane-vesicle-meningococcal-vaccine-against-gonorrhoea-in-new-zealand-a-retrospective-case-control-study
#5
Helen Petousis-Harris, Janine Paynter, Jane Morgan, Peter Saxton, Barbara McArdle, Felicity Goodyear-Smith, Steven Black
BACKGROUND: Gonorrhoea is a major global public health problem that is exacerbated by drug resistance. Effective vaccine development has been unsuccessful, but surveillance data suggest that outer membrane vesicle meningococcal group B vaccines affect the incidence of gonorrhoea. We assessed vaccine effectiveness of the outer membrane vesicle meningococcal B vaccine (MeNZB) against gonorrhoea in young adults aged 15-30 years in New Zealand. METHODS: We did a retrospective case-control study of patients at sexual health clinics aged 15-30 years who were born between Jan 1, 1984, and Dec 31, 1998, eligible to receive MeNZB, and diagnosed with gonorrhoea or chlamydia, or both...
July 7, 2017: Lancet
https://www.readbyqxmd.com/read/28704569/a-virulence-associated-filamentous-bacteriophage-of-neisseria-meningitidis-increases-host-cell-colonisation
#6
Emmanuelle Bille, Julie Meyer, Anne Jamet, Daniel Euphrasie, Jean-Philippe Barnier, Terry Brissac, Anna Larsen, Philippe Pelissier, Xavier Nassif
Neisseria meningitidis is a commensal of human nasopharynx. In some circumstances, this bacteria can invade the bloodstream and, after crossing the blood brain barrier, the meninges. A filamentous phage, designated MDAΦ for Meningococcal Disease Associated, has been associated with invasive disease. In this work we show that the prophage is not associated with a higher virulence during the bloodstream phase of the disease. However, looking at the interaction of N. meningitidis with epithelial cells, a step essential for colonization of the nasopharynx, we demonstrate that the presence of the prophage, via the production of viruses, increases colonization of encapsulated meningococci onto monolayers of epithelial cells...
July 13, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28704351/high-risk-for-invasive-meningococcal-disease-among-patients-receiving-eculizumab-soliris-despite-receipt-of-meningococcal-vaccine
#7
Lucy A McNamara, Nadav Topaz, Xin Wang, Susan Hariri, LeAnne Fox, Jessica R MacNeil
Use of eculizumab (Soliris, Alexion Pharmaceuticals), a terminal complement inhibitor, is associated with a 1,000-fold to 2,000-fold increased incidence of meningococcal disease (1). Administration of meningococcal vaccines is recommended for patients receiving eculizumab before beginning treatment (2,3). Sixteen cases of meningococcal disease were identified in eculizumab recipients in the United States during 2008-2016; among these, 11 were caused by nongroupable Neisseria meningitidis. Fourteen patients had documentation of receipt of at least 1 dose of meningococcal vaccine before disease onset...
July 14, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28699876/characterization-of-vsr-endonucleases-from-neisseria-meningitidis
#8
Milena Bażlekowa, Monika Adamczyk-Popławska, Agnieszka Kwiatek
DNA methylation is a common modification occurring in all living organisms. 5-methylcytosine, which is produced in a reaction catalysed by C5-methyltransferases, can spontaneously undergo deamination to thymine, leading to the formation of T:G mismatches and C→T transitions. In Escherichia coli K-12, such mismatches are corrected by the Very Short Patch (VSP) repair system, with Vsr endonuclease as the key enzyme. Neisseria meningitidis possesses genes that encode DNA methyltransferases, including C5-methyltransferases...
July 12, 2017: Microbiology
https://www.readbyqxmd.com/read/28698183/meningococcal-b-vaccination-also-cuts-risk-of-gonorrhoea-study-suggests
#9
Susan Mayor
No abstract text is available yet for this article.
July 11, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28692384/advancing-the-use-of-emergency-department-syndromic-surveillance-data-new-york-city-2012-2016
#10
Ramona Lall, Jasmine Abdelnabi, Stephanie Ngai, Hilary B Parton, Kelly Saunders, Jessica Sell, Amanda Wahnich, Don Weiss, Robert W Mathes
INTRODUCTION: The use of syndromic surveillance has expanded from its initial purpose of bioterrorism detection. We present 6 use cases from New York City that demonstrate the value of syndromic surveillance for public health response and decision making across a broad range of health outcomes: synthetic cannabinoid drug use, heat-related illness, suspected meningococcal disease, medical needs after severe weather, asthma exacerbation after a building collapse, and Ebola-like illness in travelers returning from West Africa...
July 2017: Public Health Reports
https://www.readbyqxmd.com/read/28685134/vaccinations-against-respiratory-infections-in-arabian-gulf-countries-barriers-and-motivators
#11
Amani S Alqahtani, Daniah M Bondagji, Abdullah A Alshehari, Mada H Basyouni, Tariq M Alhawassi, Nasser F BinDhim, Harunor Rashid
AIM: To study the uptake, barriers and motivators of influenza, pneumococcal, meningococcal and pertussis vaccines among members of public in Arabian Gulf countries. METHODS: A cross-sectional survey among the Gulf Cooperation Council (GCC) countries' residents. Data collected electronically through a smartphone app. The survey variables aimed to investigate the respondents' awareness about vaccines against influenza, pneumococcal, meningococcal and pertussis infections...
June 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28668575/meningococcal-serogroup-c-immunogenicity-antibody-persistence-and-memory-b-cells-induced-by-the-monovalent-meningococcal-serogroup-c-versus-quadrivalent-meningococcal-serogroup-acwy-conjugate-booster-vaccine-a-randomized-controlled-trial
#12
Mariëtte B van Ravenhorst, Fiona R M van der Klis, Debbie M van Rooijen, Mirjam J Knol, Susanne P Stoof, Elisabeth A M Sanders, Guy A M Berbers
BACKGROUND: Adolescents are considered the key transmitters of meningococci in the population. Meningococcal serogroup C (MenC) antibody levels wane rapidly after MenC conjugate vaccination in young children, leaving adolescents with low antibody levels. In this study, we compared MenC immune responses after booster vaccination in adolescence with either tetanus toxoid conjugated MenC (MenC-TT) or MenACWY (MenACWY-TT) vaccine, and aimed to establish an optimal age for this booster. METHODS: Healthy 10-, 12-, and 15-year-olds, who received a single dose of MenC-TT vaccine in early childhood, were randomized to receive MenC-TT or MenACWY-TT vaccine...
June 28, 2017: Vaccine
https://www.readbyqxmd.com/read/28666760/vaccination-coverage-among-social-and-healthcare-workers-in-ten-countries-of-samu-social-international-sites
#13
Esaie Marshall, Dominique Salmon, Delphine Laisney, Nadia Bousfiha, Yacouba Togola, François Ouedraogo, Maud Santantonio, Coumba Khadidja Dieng, Suzanne Tartière, Xavier Emmanuelli
BACKGROUND: We aim to determine the vaccination coverage of social and healthcare workers in International sites of Samusocial, providing emergency care to homeless people, and to assess factors associated with having received necessary doses at adulthood. METHODS: Data on immunization coverage of social and healthcare workers were provided by a cross-sectional survey, conducted from February to April 2015 among 252 Samusocial workers in 10 countries. Vaccination status and characteristics of participants were collected through a self-administered questionnaire...
June 27, 2017: Vaccine
https://www.readbyqxmd.com/read/28662181/structure-of-the-neisseria-adhesin-complex-protein-acp-and-its-role-as-a-novel-lysozyme-inhibitor
#14
María Victoria Humbert, Amaka Marian Awanye, Lu-Yun Lian, Jeremy P Derrick, Myron Christodoulides
Pathogenic and commensal Neisseria species produce an Adhesin Complex Protein, which was first characterised in Neisseria meningitidis (Nm) as a novel surface-exposed adhesin with vaccine potential. In the current study, the crystal structure of a recombinant (r)Nm-ACP Type I protein was determined to 1.4 Å resolution: the fold resembles an eight-stranded β-barrel, stabilized by a disulphide bond between the first (Cys38) and last (Cys121) β-strands. There are few main-chain hydrogen bonds linking β4-β5 and β8-β1, so the structure divides into two four-stranded anti-parallel β-sheets (β1-β4 and β5-β8)...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28652113/early-versus-late-diagnosis-in-community-acquired-bacterial-meningitis-a-retrospective-cohort-study
#15
Jacob Bodilsen, Christian Thomas Brandt, Andrew Sharew, Michael Dalager-Pedersen, Thomas Benfield, Henrik Carl Schønheyder, Henrik Nielsen
OBJECTIVES: To examine clinical characteristics and outcome of patients with late diagnosis of community-acquired bacterial meningitis (CABM). METHODS: We conducted a chart review of all adults with proven CABM in three centres in Denmark from 1998 through 2014. Patients were categorised as 1) early diagnosis of CABM immediately on admission or 2) late diagnosis if CABM was not listed in referral or admission records and neither lumbar puncture nor antibiotic therapy for meningitis was considered immediately on admission...
June 23, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28651843/-neisseria%C3%A2-meningitidis-urethritis-two-case-reports
#16
C Dubois, A-L Liegeon, C Fabbro, F Truchetet
BACKGROUND: Neisseria meningitidis (NM) is a commensal bacteria present in the oropharyngeal flora that causes invasive infections. There have been rarer reports of presence in the genital region. Herein, we present two cases of acute NM urethritis. PATIENTS AND METHODS: Two men aged 30 and 31years, one of whom is homosexual and seropositive for HIV infection, presented urethral discharge which was diagnosed as acute urethritis. The unit through samples indicated the presence of NM of serogroups B and C...
June 23, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28651840/the-role-of-anti-nhba-antibody-in-bactericidal-activity-elicited-by-the-meningococcal-serogroup-b-vaccine-menb-4c
#17
Elizabeth Partridge, Eduardo Lujan, Serena Giuntini, David M Vu, Dan M Granoff
BACKGROUND: MenB-4C (Bexsero®) is a multicomponent serogroup B meningococcal vaccine. For vaccine licensure, efficacy was inferred from serum bactericidal antibody (SBA) against three antigen-specific indicator strains. The bactericidal role of antibody to the fourth vaccine antigen, Neisserial Heparin binding antigen (NHba), is incompletely understood. METHODS: We identified nine adults immunized with two or three doses of MenB-4C who had sufficient volumes of sera and >3-fold increases in SBA titer against a strain with high NHba expression, which was mismatched with the other three MenB-4C antigens that elicit SBA...
June 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28647167/adolescent-meningococcal-serogroup-a-w-and-y-immune-responses-following-immunization-with-quadrivalent-meningococcal-a-c-w-and-y-conjugate-vaccine-optimal-age-for-vaccination
#18
Mariëtte B van Ravenhorst, Fiona R M van der Klis, Debbie M van Rooijen, Elisabeth A M Sanders, Guy A M Berbers
BACKGROUND: Recently the incidence of meningococcal serogroup Y (MenY) and in particular serogroup W (MenW) invasive disease has risen in several European countries, including the Netherlands. Adolescents are a target group for primary prevention through vaccination to protect against disease and reduce carriage and induce herd protection in the population. The present study assessed MenA, MenW and MenY antibody levels in adolescents up to one year following primary vaccination with quadrivalent MenACWY-PS conjugated to tetanus toxoid (MenACWY-TT)...
June 21, 2017: Vaccine
https://www.readbyqxmd.com/read/28646924/ciprofloxacin-for-contacts-of-cases-of-meningococcal-meningitis-as-an-epidemic-response-study-protocol-for-a-cluster-randomized-trial
#19
Matthew E Coldiron, Gabriel Alcoba, Iza Ciglenecki, Matt Hitchings, Ali Djibo, Anne-Laure Page, Celine Langendorf, Rebecca F Grais
BACKGROUND: Epidemics of meningococcal meningitis are common in the "African meningitis belt." Current response strategies include reactive vaccination campaigns, which are often organized too late to have maximal impact. A novel strain of Neisseria meningitidis serogroup C has been circulating in recent years, and vaccine supplies are limited. An evaluation of chemoprophylaxis with single-dose ciprofloxacin for household contacts of meningitis cases has therefore been recommended. METHODS/DESIGN: A three-arm cluster-randomized trial has been designed for implementation during a meningococcal meningitis epidemic in a health district in Niger in which at least two Health Zones (HZs) have met the weekly epidemic threshold...
June 24, 2017: Trials
https://www.readbyqxmd.com/read/28645718/optimizing-adjuvants-for-intradermal-delivery-of-menc-glycoconjugate-vaccine
#20
Agnese Donadei, Cristiana Balocchi, Maria R Romano, Luigi Panza, Roberto Adamo, Francesco Berti, Derek T O'Hagan, Simona Gallorini, Barbara C Baudner
Intradermal vaccine delivery is a promising alternative to the conventional intramuscular route. The skin layer is immunologically supported by a densely network of antigen presenting cells, while the skeletal muscle is loaded with a relatively sparse population of APCs. Nevertheless, the vaccine to be suitable for intradermal delivery needs a new formulation to facilitate either smaller injection volumes or the introduction into new delivery devises as micro-needles. This study presents a proof of concept for intradermal delivery of the MenC-CRM197 glycoconjugate vaccine using a mouse model...
July 13, 2017: Vaccine
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