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Pneumococcal vaccine

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https://www.readbyqxmd.com/read/28443585/pneumococcal-nasopharyngeal-carriage-in-young-healthy-children-after-pneumococcal-conjugate-vaccine-in-turkey
#1
Ahmet Arvas, Haluk Çokuğraş, Emel Gür, Nevriye Gönüllü, Zeynep Taner, Hrisi Bahar Tokman
AIMS: The purpose of this study was to determine the prevalence of nasopharyngeal carriage of Streptococcus pneumoniae in healthy children aged 0-6 years who were vaccinated with pneumococcal conjugate vaccine. METHODS: The cross-sectional study was conducted on 150 healthy Turkish children aged between 1 month and 6 years of age. Serotyping was performed and risk factors of carriage were evaluated. RESULTS: The overall carriage rate was 14%...
April 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28443565/influenza-and-pneumonia-vaccination-rates-and-factors-affecting-vaccination-among-patients-with-chronic-obstructive-pulmonary-disease
#2
Ülkü Aka Aktürk, Aslı Görek Dilektaşlı, Aysun Şengül, Banu Musaffa Salepçi, Nuray Oktay, Mustafa Düger, Hale Arık Taşyıkan, Nagihan Durmuş Koçak
BACKGROUND: Influenza and pneumococcal vaccinations are recommended in COPD patients to decrease associated risks at all stages. Although the prevalence of COPD is high in our country, as previously reported vaccination rates are low. AIMS: To assess the vaccination rates of COPD patients and factors that may affect these. STUDY DESIGN: Multi-center cross-sectional study. RESULTS: The average age of the 296 included patients was 66...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28438972/position-of-o-acetylation-within-the-capsular-repeat-unit-impacts-the-biological-properties-of-pneumococcal-serotypes-33a-and-33f
#3
Brady L Spencer, Jamil S Saad, Anukul T Shenoy, Carlos J Orihuela, Moon H Nahm
Streptococcus pneumoniae (pneumococcus) produces many capsule types that differ in their abilities to evade host immune recognition. To explain these serotype-dependent protective capacities, many studies have investigated capsular thickness or the interaction of the capsule with complement proteins, but the effects of small chemical modifications of the capsule on its function have not been studied. One small chemical modification found frequently among pneumococcal capsules is O-acetylation. Pneumococcal serotype 33A has two membrane-bound O-acetyltransferase genes, wciG and wcjE A 33A wcjE-deficient variant, 33F, occurs naturally and is increasing in prevalence in the wake of widespread conjugate vaccine use, but no wciG-deficient variants have been reported...
April 24, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28438705/tigr4-strain-causes-more-severe-disease-than-wu2-strain-in-a-mouse-model-of-streptococcus-pneumoniae-meningitis-a-common-pathogenic-role-for-interferon-%C3%AE
#4
Belinda Yau, Lay Khoon Too, Helen J Ball, Nicholas H Hunt
Streptococcus pneumoniae (S. pneumoniae) meningitis causes debilitating neurological symptoms and acute fatalities in patients, and long-term neurological sequelae in some survivors. Current vaccines do not protect against all 94 known S. pneumoniae capsular serotypes, many of which are capable of causing pneumococcal meningitis (PM). We here compare the pathogenic outcomes of two clinically virulent isolates of S. pneumoniae, serotype 3 strain WU2 and serotype 4 strain TIGR4, in a murine model of PM. At an identical infectious dosage of 10(3) CFU administered via the intracerebroventricular route, significantly greater mortality, interleukin (IL)1β and IL6 production, and blood-brain barrier dysfunction occurred in TIGR4-induced PM compared to PM caused by WU2...
April 21, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28435909/self-assembled-particulate-psaa-as-vaccine-against-streptococcus-pneumoniae-infection
#5
Majela González-Miro, Laura Rodríguez-Noda, Mildrey Fariñas-Medina, Dagmar García-Rivera, Vicente Vérez-Bencomo, Bernd H A Rehm
Streptococcus pneumoniae is a human pathogen responsible for the majority of childhood pneumonia and media otitis cases worldwide. The diversity of its capsular polysaccharides (CPS) results in more than 91 serotypes of which at least 23 are virulent. Various CPS conjugated to immunogenic carrier proteins are currently licensed and provide protection against the infection caused by the respective serotypes but not against new and emerging virulent serotypes. In this study, we considered the conserved protein antigen PsaA, the pneumococcal surface adhesin A, in order to overcome the limitations of CPS antigens...
April 2017: Heliyon
https://www.readbyqxmd.com/read/28433849/clinical-significance-of-long-term-follow-up-of-children-with-posttraumatic-skull-base-fracture
#6
Sharon Leibu, Guy Rosenthal, Yigal Shoshan, Mony Benifla
BACKGROUND: To assess in children with skull base fractures, incidences of cerebrospinal fluid (CSF) leak, meningitis, and the need for prophylactic antibiotics, anti-pneumococcal vaccination, and surgical interventions. METHODS: We reviewed the records of children with skull base fractures who were admitted to our tertiary care center during 2009-2014. RESULTS: 196 children (153 male) were hospitalized with skull base fractures, aged 1 month to 18 years (mean 6 ± 4 years)...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28431817/pneumococcal-carriage-among-children-after-four-years-of-routine-10-valent-pneumococcal-conjugate-vaccine-use-in-brazil-the-emergence-of-multidrug-resistant-serotype-6c
#7
Felipe P G Neves, Nayara T Cardoso, Robert E Snyder, Mariel A Marlow, Claudete A A Cardoso, Lúcia M Teixeira, Lee W Riley
BACKGROUND: In 2010, the 10-valent pneumococcal conjugate vaccine (PCV10) was introduced free of charge in Brazil as part of the public immunization program. Here we investigated the carriage prevalence, colonization risk factors, capsular types, and antimicrobial resistance among pneumococcal isolates obtained from children in Brazil four years after routine PCV10 use. METHODS: Between September and December 2014, we conducted a cross-sectional study among children<6years old who attended one public and two private clinics in Niterói, RJ, Brazil to evaluate pneumococcal nasopharyngeal carriage...
April 18, 2017: Vaccine
https://www.readbyqxmd.com/read/28429891/comparison-of-immunization-rates-of-adults-ages-65-years-and-older-managed-within-two-nurse-practitioner-owned-clinics-with-national-immunization-rates
#8
Wendy L Wright, Elise Morrell, Jennie Lee, Norma Graciela Cuellar, Patricia White
BACKGROUND AND PURPOSE: Adults ages ≥65 years are at increased risk for infectious diseases. Ensuring these individuals are fully vaccinated is imperative. The purpose of this study was to assess the immunization rates of adults ages ≥65 years managed by nurse practitioners (NPs) and compare the results with national immunization rates and Healthy People 2020 goals. METHODS: A convenience sample of adults ages ≥65 years was obtained from two NP-managed clinics...
April 21, 2017: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/28429115/comparison-of-the-tolerability-of-newly-introduced-childhood-vaccines-in-the-netherlands
#9
Jeanet M Kemmeren, Nicoline At van der Maas, Hester E de Melker
In 2011, the 7-valent conjugated pneumococcal vaccine (PCV7) was replaced by the 10-valent vaccine (PCV10) and universal hepatitis B vaccination has been introduced in the Netherlands. A questionnaire study was conducted to assess the tolerability of DTaP-IPV-Hib + PCV7 (PCV7-cohort), DTaP-IPV-Hib + PCV10 (PCV10-cohort), and DTaP-IPV-Hib-HepB + PCV10 (HepB-cohort). Parents were asked to report in questionnaires local reactions and systemic adverse events (AEs) before and after vaccination of their infant at 2, 3, 4, and 11 months of age...
April 20, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28427991/impact-of-the-pneumococcal-conjugate-vaccine-on-serotype-distribution-of-adult-non-invasive-streptococcus-pneumoniae-isolates-in-tokai-region-japan-2008-2016
#10
Yuri Furuya, Yuka Yamagishi, Hayato Okade, Takumi Kadota, Tori Funatsu, Maki Eto, Nobuhiko Nomura, Junichi Mitsuyama, Hiroshige Mikamo
The introduction of the 7-valent pneumococcal conjugate vaccine (PCV7) in February 2010 markedly reduced the burden of invasive pneumococcal disease and changed serotype distribution in Japan. In November 2013, PCV7 was replaced by the 13-valent pneumococcal conjugate vaccine (PCV13). We investigated the serotype distribution and susceptibility trends of non-invasive Streptococcus pneumoniae isolates collected from adult patients. A total of 504 pneumococcal isolates were collected during 4 periods between 2008 and 2016 (Period 1; between June 2008 and April 2009, Period 2; between September 2010 and March 2011, Period 3; between October 2011 and March 2012, Period 4; between August 2015 and January 2016)...
April 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28427846/vaccines-are-different-a-systematic-review-of-budget-impact-analyses-of-vaccines
#11
REVIEW
Priscilla Magalhaes Loze, Luciana Bertholim Nasciben, Ana Marli Christovam Sartori, Alexander Itria, Hillegonda Maria Dutilh Novaes, Patrícia Coelho de Soárez
INTRODUCTION: Several countries require manufacturers to present a budget impact analysis (BIA), together with a cost-effectiveness analysis, to support national funding requests. However, guidelines for conducting BIA of vaccines are scarce. OBJECTIVES: To analyze the methodological approaches used in published budget impact analysis (BIA) of vaccines, discussing specific methodological issues related to vaccines. MATERIAL AND METHODS: This systematic review of the literature on BIA of vaccines was carried out in accordance with the Centre for Reviews and Dissemination - CRD guidelines...
April 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28425818/immunization-with-10-valent-pneumococcal-non-typeable-haemophilus-influenzae-protein-d-conjugate-vaccine-phid-cv-according-to-different-schedules-in-infants-in-south-africa-a-phase-iii-trial
#12
Shabir A Madhi, Anthonet Koen, Lisa Jose, Marta Moreira, Nadia van Niekerk, Clare Cutland, Nancy François, Javier Ruiz-Guiñazú, Juan Pablo Yarzabal, Dorota Borys, Lode Schuerman
BACKGROUND: Limited clinical data exists to assess differences between various infant pneumococcal conjugate vaccine schedules. In this trial, we evaluated immunogenicity of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (phid-cv) administered using 3 different immunization schedules in HIV unexposed-uninfected infants in South Africa. RESEARCH DESIGN AND METHODS: In this phase iii, open, single-center, controlled study (clinicaltrials...
April 20, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28424198/pneumococcal-capsular-polysaccharide-immunity-in-the-elderly
#13
Hugh Adler, Daniela M Ferreira, Stephen B Gordon, Jamie Rylance
Immunity against pneumococcal infections is impaired in older people, and current vaccines are poorly protective against pneumococcal disease in this population. Naturally-acquired immunity against pneumococcal capsular polysaccharides develops during childhood and is robust in young adults, but deteriorates with advanced age. In particular, antibody levels and function are reduced in older people. Pneumococcal vaccines are recommended for people over 65 years of age. However, the benefits of polysaccharide and protein-conjugated vaccines in this population are small, due to both serotype replacement and incomplete protection against vaccine-serotype pneumococcal disease...
April 19, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28420056/treatment-with-belimumab-in-systemic-lupus-erythematosus-does-not-impair-antibody-response-to-13-valent-pneumococcal-conjugate-vaccine
#14
J Nagel, T Saxne, P Geborek, A A Bengtsson, S Jacobsen, C Svaerke Joergensen, J-Å Nilsson, L Skattum, A Jönsen, M C Kapetanovic
Background/purpose The objective of this study was to explore the impact of systemic lupus erythematosus and belimumab given in addition to standard of care therapy on 13-valent conjugated pneumococcal vaccine (PCV13) response. Methods Forty-seven systemic lupus erythematosus patients and 21 healthy controls were immunized with a single dose of 13-valent conjugated pneumococcal vaccine. Forty systemic lupus erythematosus patients were treated with traditional disease-modifying anti rheumatic drugs, 11 of those received belimumab in addition, and 32 patients were treated with concomitant prednisolone...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28419083/pneumococcal-vaccination-and-efficacy-in-patients-with-heterotaxy-syndrome
#15
Pei-Lan Shao, Mei-Hwan Wu, Jou-Kou Wang, Hui-Wen Hsu, Li-Min Huang, Shuenn-Nan Chiu
BACKGROUND: Pneumococcal vaccines, including pneumococcal polysaccharide vaccine (PPV) and pneumococcal conjugated vaccine (PCV), are important in preventing invasive pneumococcal disease. We analyzed the pneumococcal vaccination rate, efficacy and durability in patients with heterotaxy. METHODS: All patients with heterotaxy and CCHD who were followed at our institution between 2010 and 2015 were included. Pneumococcal vaccine status and geometric mean concentration (GMC) of serotypes 6B, 14, 19F, and 23F were analyzed...
April 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28414696/decrease-in-pneumococcal-otitis-media-cultures-with-concomitant-increased-antibiotic-susceptibility-in-the-pneumococcal-conjugate-vaccines-era
#16
Basel Jabarin, Jacob Pitaro, Tzilia Lazarovitch, Haim Gavriel, Limor Muallem-Kalmovich, Ephraim Eviatar, Tal Marom
OBJECTIVE: To study the change in the incidence and antibiotic susceptibility patterns of Streptococcus pneumoniae (Spn) in cultures obtained from children with otitis media (OM) during the pneumococcal conjugate vaccines (PCVs) era. STUDY DESIGN: Retrospective. SETTING: Secondary medical care center. PATIENTS: Children less than 8 years who presented with OM and had positive pneumococcal cultures during January 1, 2007 to December 12, 2014 were identified...
April 13, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28414567/disease-burden-of-community-acquired-pneumonia-among-children-under-5%C3%A2-y-old-in-china-a-population-based-survey
#17
Yan Li, Zhijie An, Dapeng Yin, Yanmin Liu, Zhuoying Huang, Yujie Ma, Hui Li, Qi Li, Huaqing Wang
BACKGROUND: To obtain the baseline data on the incidence and cost of community acquired pneumonia among under-5 children for future studies, and provide evidence for shaping China's strategies regarding pneumococcal conjugate vaccine (PCV). METHODS: Three townships from Heilongjiang, Hebei and Gansu Province and one community in Shanghai were selected as study areas. A questionnaire survey was conducted to collect data on incidence and cost of pneumonia among children under 5 y old in 2012...
April 17, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28412075/vaccine-preferences-and-acceptance-of-older-adults
#18
R Eilers, H E de Melker, J Veldwijk, P F M Krabbe
BACKGROUND: Expanding vaccination programs for the older population might be important as older adults are becoming a larger proportion of the general population. The aim of this study is to determine the relative importance of vaccine and disease specific characteristics and acceptance for Dutch older adults, including pneumococcal disease, herpes zoster, pertussis vaccination, and influenza vaccination. METHODS: A discrete choice experiment was conducted to generate choice data that was analyzed using a mixed multinomial logit statistical model...
April 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28410825/active-offer-of-vaccinations-during-hospitalization-improves-coverage-among-splenectomized-patients-an-italian-experience
#19
Maria Serena Gallone, Carmen Martino, Michele Quarto, Silvio Tafuri
In 2014, an Italian hospital implemented a protocol for pneumococcal, meningococcal, and Haemophilus influenzae type b vaccines offer to splenectomized patients during their hospitalization. After 1 year, coverage for recommended vaccinations increased from 5.7%-66.7% and the average time between splenectomy and vaccines administration decreased from 84.7-7.5 days.
April 11, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28410816/the-pneumocell-study-vaccination-of-igg1-and-igg2-deficient-patients-with-prevnar13
#20
Salah Zangenah, Linda Björkhem-Bergman, Anna-Carin Norlin, Susanne Hansen, Lars Lindqvist, Birgitta Henriques-Normark, Peter Bergman
BACKGROUND: Patients with IgG-deficiency often suffer from repeated bacterial infections with S. pneumoniae. Since there is a lack of knowledge regarding whether IgG-deficient patients would benefit from conjugate pneumococcal vaccination, we set out to evaluate the effect of Prevnar13 vaccination in IgG1- and/or IgG2-deficient patients. METHOD: We designed a small pilot-study including IgG1- and/or IgG2-deficient patients (n=10) and age- and sex-matched healthy controls (n=10)...
May 9, 2017: Vaccine
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