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Pneumococcal vaccine

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https://www.readbyqxmd.com/read/28922566/streptococcus-pneumoniae-and-chronic-endobronchial-infections-in-childhood
#1
Kim M Hare, Amanda J Leach, Heidi C Smith-Vaughan, Anne B Chang, Keith Grimwood
Streptococcus pneumoniae (pneumococcus) is the main cause of bacterial pneumonia worldwide and has been studied extensively in this context. However, its role in chronic endobronchial infections and accompanying lower airway neutrophilic infiltration has received little attention. Severe and recurrent pneumonia are risk factors for chronic suppurative lung disease (CSLD) and bronchiectasis; the latter causes considerable morbidity and, in some populations, premature death in children and adults. Protracted bacterial bronchitis (PBB) is another chronic endobronchial infection associated with substantial morbidity...
September 18, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28922054/economic-burden-of-pneumococcal-infections-in-children-under-5%C3%A2-years-of-age
#2
Mehmet Ceyhan, Yasemin Ozsurekci, Kubra Aykac, Basak Hacibedel, Egemen Ozbilgili
The present study aimed to determine the cost of childhood pneumococcal infections under 5 years of age and to provide further data for future health economy studies. Electronic medical records of children diagnosed with meningitis caused by S. pneumoniae and all-cause pneumonia, and acute otitis media (AOM) between January 2013-April 2014 were retrospectively evaluated. Direct costs for the treatments of hospitalized patients (pneumonia and pneumococcal meningitis) including costs of healthcare services consisted of costs of hospital bed, examination, laboratory analyses, scanning methods, consultation, vascular access procedures, and infusion and intravenous treatments...
September 18, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28911953/associations-between-complementary-medicine-utilization-and-influenza-pneumococcal-vaccination-results-of-a-national-cross-sectional-survey-of-9151-australian-women
#3
Jon Wardle, Jane Frawley, Jon Adams, David Sibbritt, Amie Steel, Romy Lauche
Influenza and pneumococcal vaccination is recommended for all adults, with older adults considered a high-risk group for targeted intervention. As such it is important for factors affecting vaccine uptake in this group to be examined. Complementary medicine (CM) use has been suggested as a possible factor associated with lower vaccination uptake. To determine if associations exist between influenza and pneumococcal vaccine uptake in older Australian women and the use of CM, data from women aged 62-67years surveyed as part of the Australian Longitudinal Study on Women's Health (ALSWH) were analyzed in 2013 regarding their health and health care utilization...
September 11, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28911902/the-impact-of-10-valent-and-13-valent-pneumococcal-conjugate-vaccines-on-hospitalization-for-pneumonia-in-children-a-systematic-review-and-meta-analysis
#4
REVIEW
Cristiano Alicino, Chiara Paganino, Andrea Orsi, Matteo Astengo, Cecilia Trucchi, Giancarlo Icardi, Filippo Ansaldi
BACKGROUND: This systematic review and meta-analysis aimed at summarizing available data on the impact of PCV10 and PCV13 in reducing the incidence of CAP hospitalizations in children aged <5years. METHODS: A systematic search of the literature was conducted. We included time-series analyses and before-after studies, reporting the incidence of hospitalization for pneumonia in the periods before and after the introduction of PCV10 or PCV13 into the immunization program...
September 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28910966/pneumococcal-23b-molecular-subtype-identified-using-whole-genome-sequencing
#5
Georgia Kapatai, Carmen L Sheppard, Lukas J Troxler, David J Litt, Julien Furrer, Markus Hilty, Norman K Fry
The polysaccharide capsule is a major virulence factor of Streptococcus pneumoniae and the target of all currently licensed pneumococcal vaccines. At present, there are 92 serologically distinct pneumococcal serotypes. Structural and antigenic variation of capsular types is the result of genetic variation within the capsular polysaccharide synthesis (CPS) locus; however, genetic variation may not always result in phenotypic differences which produce novel serotypes. With the introduction of high throughput whole genome sequencing, discovery of novel genotypic variants is not unexpected and this study describes a novel variant of the serotype 23B CPS operon...
August 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28910279/longitudinal-multiparameter-single-cell-analysis-of-macaques-immunized-with-pneumococcal-protein-conjugated-or-unconjugated-polysaccharide-vaccines-reveals-distinct-antigen-specific-memory-b-cell-repertoires
#6
Bin Jia, Lisa K McNeil, Christopher D Dupont, Konstantinos Tsioris, Rachel M Barry, Ingrid L Scully, Adebola O Ogunniyi, Christopher Gonzalez, Michael W Pride, Todd M Gierahn, Paul A Liberator, Kathrin U Jansen, J Christopher Love
BACKGROUND: The efficacy of protein-conjugated pneumococcal polysaccharide vaccines has been well characterized for children. The level of protection conferred by unconjugated polysaccharide vaccines remains less clear, particularly for elderly individuals who have had prior antigenic experience through immunization with unconjugated polysaccharide vaccines or natural exposure to Streptococcus pneumoniae. METHODS: We compared the magnitude, diversity and genetic biases of antigen-specific memory B cells in two groups of adult cynomolgus macaques that were immunized with a 7-valent conjugated vaccine and boosted after five years with either a 13-valent pneumococcal polysaccharide conjugate vaccine (13vPnC) or a 23-valent unconjugated pneumococcal polysaccharide vaccine (23vPS) using microengraving (a single-cell analysis method) and single-cell RT-PCR...
2017: PloS One
https://www.readbyqxmd.com/read/28904678/-epidemiological-profile-of-hemoglobinopathies-a-cross-sectional-and-descriptive-index-case-study
#7
Fatima Dahmani, Souad Benkirane, Jaafar Kouzih, Aziz Woumki, Hassan Mamad, Azlarab Masrar
Hemoglobinopathies are congenital disorders resultimg from hemoglobin abnormalities. Major forms are often severe, their management is difficult and associated with a great psychosocial impact on patients and their families. They are classified as rare diseases and are still insufficiently known by health professionals. This lack of knowledge is at the origin of diagnostic errors, delay in their management and therefore high morbidity and mortality rate for these patients. In 2008, the World Health Organization (WHO) has published data on hemoglobinopathies epidemiology: more than 330...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28903506/a-population-based-assessment-of-the-impact-of-7-and-13-valent-pneumococcal-conjugate-vaccines-on-macrolide-resistant-invasive-pneumococcal-disease-emergence-and-decline-of-streptococcus-pneumoniae-serotype-19a-cc320-with-dual-macrolide-resistance-mechanisms
#8
Max R Schroeder, Scott T Chancey, Stephanie Thomas, Wan-Hsuan Kuo, Sarah W Satola, Monica M Farley, David S Stephens
Background: Macrolide efflux encoded by mef(E)/mel and ribosomal methylation encoded by erm(B) confer most macrolide resistance in Streptococcus pneumoniae. Introduction of the heptavalent pneumococcal conjugate vaccine (PCV7) in 2000 reduced macrolide-resistant invasive pneumococcal disease (MR-IPD) due to PCV7 serotypes (6B, 9V, 14, 19F, and 23F). Methods: In this study, the impact of PCV7 and PCV13 on MR-IPD was prospectively assessed. A 20-year study of IPD performed in metropolitan Atlanta, Georgia, using active, population-based surveillance formed the basis for this study...
September 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28898612/-paediatric-invasive-pneumococcal-disease-before-universal-vaccination-1995-2015
#9
Muriel Ferreira, Henrique Oliveira, Nuno Costa Silva, Luís Januário, Fernanda Rodrigues
INTRODUCTION: Pneumococcal conjugate vaccine was introduced in the private market in Portugal in 2001, reaching over the years a moderately high coverage. In July 2015, it was included in the National Immunisation Program. The aim of this study was to characterize invasive pneumococcal disease in a pediatric hospital before universal use of the vaccine. MATERIAL AND METHODS: Retrospective analysis of medical records of all children with Streptococcus pneumoniae identified by culture and/or molecular biology (available since 2008), in products obtained from sterile sites, from January 1995 to June 2015...
June 30, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28892455/modeling-specific-antibody-responses-to-natural-immunization-to-predict-a-correlate-of-protection-against-infection-before-commencing-a-clinical-vaccine-trial
#10
Anthony Almudevar, Michael E Pichichero
i) Background: Clinical trials of vaccines for children to prevent acute otitis media (AOM) infections caused by the bacteria Streptococcus pneumonia (Spn) are in Phase I. The objective of this study was to use serum antibody measurements to pneumococcal purified protein candidate antigens that occurred after natural "immunization" to predict a correlate of protection response needed following an injectable vaccine against AOM in children. METHODS: 590 nasal and serum samples were collected from 129 healthy children at 6, 9, 12, 15, 18, 24 and 30-36 months of age and when the child developed AOM...
September 11, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28887787/pneumococcal-vaccines-how-many-serotypes-are-enough
#11
REVIEW
Aaradhana Singh, A K Dutta
Streptococcus pneumoniae causes meningitis, pneumonia, septicemia, arthritis, sinusitis and otitis media specially in children and over 65 y age groups. It contributes significantly to under-five mortality and morbidity worldwide as well as in India. Use of pneumococcal vaccine seems to be the most effective measure to decrease the disease burden and reduction of under-five mortality. Many countries have already included Pneumococcal Conjugate Vaccines (PCV) in their National Immunization Programmes (NIP). Government of India has announced recently to include PCV13 in NIP in a phased manner...
September 9, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28881165/safety-and-immunogenicity-of-a-13-valent-pneumococcal-conjugate-vaccine-in-adults-50%C3%A2-to-65%C3%A2-years-of-age-in-india-an-open-label-trial
#12
Bhagirath B Solanki, Christine Juergens, Manojkumar B Chopada, Pravin Supe, Vani Sundaraiyer, Natacha Le Dren-Narayanin, Mark W Cutler, William C Gruber, Daniel A Scott, Beate Schmoele-Thoma
Streptococcus pneumoniae infection is a major global public health concern in older adults, especially as life expectancy continues to increase in most countries, including India. Recently, a 13-valent pneumococcal conjugate vaccine (PCV13) with the ability to enhance immunity (immunologic memory) on natural exposure or revaccination has been shown to protect against community-acquired pneumonia and invasive pneumococcal disease in adults 65 years of age and older. An unconjugated 23-valent pneumococcal polysaccharide vaccine has been available for decades; however, data on protection against pneumonia are inconsistent...
September 7, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28880953/direct-and-indirect-impact-of-10-valent-pneumococcal-conjugate-vaccine-introduction-on-pneumonia-hospitalizations-and-economic-burden-in-all-age-groups-in-brazil-a-time-series-analysis
#13
Ana Lucia Andrade, Eliane T Afonso, Ruth Minamisava, Ana Luiza Bierrenbach, Elier B Cristo, Otaliba L Morais-Neto, Gabriela M Policena, Carla M A S Domingues, Cristiana M Toscano
No abstract text is available yet for this article.
2017: PloS One
https://www.readbyqxmd.com/read/28876159/implementing-a-multidisciplinary-approach-to-enhance-compliance-with-guideline-recommended-prechemotherapy-pneumococcal-vaccination-in-a-military-based-medical-oncology-practice
#14
Wilfred Delacruz, Sandra Terrazzino, Michael Osswald, Casey Payne, Brian Haney
PURPOSE: Patients with cancer are at increased risk for invasive pneumococcal disease, including community-acquired pneumonia. Current Advisory Committee on Immunization Practices and National Cancer Comprehensive Network guidelines recommend pneumococcal vaccination for immunocompromised patients, including patients with cancer. METHODS: We conducted a quality improvement (QI) project to enhance compliance with pneumococcal vaccination in patients before their chemotherapy...
September 6, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28875600/validation-of-the-world-health-organization-enzyme-linked-immunosorbent-assay-for-the-quantitation-of-immunoglobulin-g-serotype-specific-anti-pneumococcal-antibodies-in-human-serum
#15
Hyunju Lee, Soo Young Lim, Kyung Hyo Kim
The World Health Organization (WHO) enzyme-linked immunosorbent assay (ELISA) guideline is currently accepted as the gold standard for the evaluation of immunoglobulin G (IgG) antibodies specific to pneumococcal capsular polysaccharide. We conducted validation of the WHO ELISA for 7 pneumococcal serotypes (4, 6B, 9V, 14, 18C, 19F, and 23F) by evaluating its specificity, precision (reproducibility and intermediate precision), accuracy, spiking recovery test, lower limit of quantification (LLOQ), and stability at the Ewha Center for Vaccine Evaluation and Study, Seoul, Korea...
October 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28867842/pneumococcal-conjugate-vaccines-and-hospitalization-of-children-for-pneumonia-a-time-series-analysis-south-africa-2006-2014
#16
Alane Izu, Fatima Solomon, Susan A Nzenze, Azwifarwi Mudau, Elizabeth Zell, Katherine L O'Brien, Cynthia G Whitney, Jennifer Verani, Michelle Groome, Shabir A Madhi
OBJECTIVE: To assess the impact of immunization with pneumococcal conjugate vaccines on all-cause pneumonia hospitalizations among children in Soweto, South Africa. METHODS: We used data collected at the Chris Hani Baragwanath Hospital in Soweto between 2006 and 2014 - i.e. before and after April 2009, when a pneumococcal conjugate vaccine was first included in South Africa's routine immunization programme. Using a Bayesian generalized seasonal autoregressive moving-average model and the data collected in 2006-2008, we estimated the numbers of children that would have been hospitalized for pneumonia between 2010 and 2014 if no pneumococcal conjugate vaccines had been used...
September 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/28866290/immunogenicity-safety-and-reactogenicity-of-the-pneumococcal-non-typeable-haemophilus-influenzae-protein-d-conjugate-vaccine-phid-cv-in-2-17-year-old-children-with-asplenia-or-splenic-dysfunction-a-phase-3-study
#17
L Szenborn, I V Osipova, H Czajka, S M Kharit, T Jackowska, N François, M A Habib, D Borys
BACKGROUND: Immunization with pneumococcal vaccines is an important prophylactic strategy for children with asplenia or splenic dysfunction, who are at high risk of bacterial infections (including S. pneumoniae). This study aimed to assess immunogenicity and safety of pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV, GSK) in this at-risk population. METHODS: This phase III, multi-centre, open-label, controlled study, in which at-risk children with asplenia or splenic dysfunction were enrolled (age strata: 2-4, 5-10 and 11-17years), was conducted in Poland and the Russian Federation...
September 25, 2017: Vaccine
https://www.readbyqxmd.com/read/28863866/rethinking-number-needed-to-vaccinate-for-pneumococcal-conjugate-vaccines-in-older-adults-current-and-future-implications
#18
John M McLaughlin, David L Swerdlow, Raul E Isturiz, Luis Jodar
BACKGROUND: Number-needed-to-vaccinate (NNV) is increasingly used to inform decisions about vaccine use, but it is not calculated uniformly across studies. This study compared two methodologies for calculating NNV with 13-valent pneumococcal conjugate vaccine (PCV13) to prevent one case of community-acquired pneumonia (CAP) among US adults aged ≥65years: (i) using one-year absolute rate differences as was originally performed by the Centers for Disease Control and Prevention (CDC) and (ii) using absolute risk reduction over 5years...
September 25, 2017: Vaccine
https://www.readbyqxmd.com/read/28860305/msf-criticises-india-s-decision-to-grant-pneumococcal-vaccine-patent-to-pfizer
#19
Sumi S Dutta
No abstract text is available yet for this article.
August 31, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28857151/racial-ethnic-differences-in-receipt-of-influenza-and-pneumococcal-vaccination-among-long-stay-nursing-home-residents
#20
Jasmine L Travers, Andrew W Dick, Patricia W Stone
OBJECTIVE/STUDY QUESTION: To examine racial/ethnic differences in influenza and pneumococcal vaccination receipt and nonreceipt among nursing home (NH) residents post implementation of federal vaccination policy. DATA SOURCES/STUDY SETTING/STUDY DESIGN/DATA COLLECTION/EXTRACTION METHODS: An analysis of a merged national cross-sectional dataset containing resident assessment, facility, and community data for years 2010-2013 was conducted. Logistic regressions omitting and including facility fixed effects were used to examine the influence of race and ethnicity (black, Hispanic, white) and black concentration on vaccination status across and within NHs...
August 31, 2017: Health Services Research
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