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pneumococcal pneumonia in Children

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https://www.readbyqxmd.com/read/28818574/antimicrobial-resistance-determinants-and-susceptibility-profiles-of-pneumococcal-isolates-recovered-in-trinidad-and-tobago
#1
Paulina A Hawkins, Patrick E Akpaka, Michele Nurse-Lucas, Rebecca Gladstone, Stephen D Bentley, Robert F Breiman, Lesley McGee, William H Swanston
INTRODUCTION: In Latin America and the Caribbean, pneumococcal infections were estimated to account for 12,000-18,000 deaths, 327,000 cases of pneumonia, 4,000 cases of meningitis and 1,229 cases of sepsis each year in children under five years old. Resistance of pneumococci to antimicrobial agents has evolved into a worldwide health problem in the last few decades. OBJECTIVE: The aim of this study was to determine the antimicrobial susceptibility profiles of 98 pneumococcal isolates collected in Trinidad and Tobago and associated genetic determinants...
August 14, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28813518/changes-in-the-incidence-of-pneumonia-bacterial-meningitis-and-infant-mortality-5-years-following-introduction-of-the-13-valent-pneumococcal-conjugate-vaccine-in-a-3-0-schedule
#2
Sylvia Becker-Dreps, Bryan Blette, Rafaela Briceño, Jorge Alemán, Michael G Hudgens, Gilberto Moreno, Ana Ordoñez, Julio Rocha, David J Weber, Erick Amaya
BACKGROUND: Streptococcus pneumoniae causes about 826,000 deaths of children in the world each year and many health facility visits. To reduce the burden of pneumococcal disease, many nations have added pneumococcal conjugate vaccines to their national immunization schedules. Nicaragua was the first country eligible for GAVI Alliance funding to introduce the 13-valent pneumococcal conjugate vaccine (PCV13) in 2010, provided to infants at 2, 4, and 6 months of age. The goal of this study was to evaluate the population impact of the first five years of the program...
2017: PloS One
https://www.readbyqxmd.com/read/28803551/hospitalisation-for-lower-respiratory-tract-infection-in-children-in-the-province-of-quebec-canada-before-and-during-the-pneumococcal-conjugate-vaccine-era
#3
G Anderson, G Deceuninck, Z Zhou, F D Boucher, Y Bonnier Viger, R Gilca, P DE Wals
Streptococcus pneumoniae is an important cause of community-acquired pneumonia and pneumococcal conjugate vaccines (PCVs) may reduce this burden. This study's goal was to analyse trends in lower respiratory tract infections (LRTI) hospitalisations before and during a routine vaccination programme targeting all newborns with PCV was started in the province of Quebec, Canada in December 2004. The study population included hospital admissions with a main diagnosis of LRTI among 6-59 month-old Quebec residents from April 2000 to December 2014...
August 14, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28801724/pneumococcal-meningitis-and-endocarditis-in-an-infant-possible-improved-survival-with-factor-v-leiden-mutation
#4
Sitikant Mohapatra, Assaf Doulah, Elspeth Brown
Streptococcus pneumoniae infections continue to remain associated with high morbidity and mortality. Although the incidence of invasive meningeal and/or lung disease are not uncommon, Streptococcus pneumoniae endocarditis is rare especially in healthy pediatric population. New studies have suggested a strong association between factor V leiden (FVL) mutation and favorable outcomes in critically ill children. A healthy 10 month old presented with sepsis and meningeal signs, was later confirmed to have Streptococcus pneumoniae meningitis and endocarditis...
August 12, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28783380/streptococcus-pneumoniae-serotype-19a-worldwide-epidemiology
#5
Raul Isturiz, Heather L Sings, Betsy Hilton, Adriano Arguedas, Ralf-René Reinert, Luis Jodar
Streptococcus pneumoniae causes mucosal and invasive diseases with high morbidity and mortality. Introduction of the 7-valent pneumococcal conjugate vaccine (PCV7) into routine infant immunization programs worldwide resulted in serotype 19A becoming a leading cause of the remaining pneumococcal disease burden in vaccinated and unvaccinated individuals. This article reviews the impact of the latest generation PCVs (10-valent PCV, PCV10, and 13-valent PCV, PCV13) on serotype 19A. Areas covered: This article covers immune responses elicited by PCV7, PCV10 and PCV13 against serotype 19A and their impact on nasopharyngeal (NP) carriage and disease in vaccinated and unvaccinated populations using data from surveillance systems, randomized controlled trials, and observational studies...
August 7, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28783024/pneumococcal-nasopharyngeal-carriage-in-young-healthy-children-after-pneumococcal-conjugate-vaccine-in-turkey
#6
Ahmet Arvas, Haluk Çokuğraş, Emel Gür, Nevriye Gönüllü, Zeynep Taner, Hrisi Bahar Tokman
AIMS: 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: This cross-sectional study was conducted on 150 healthy Turkish children 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%. Vaccine type serotypes were determined in 17 (12...
August 4, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28780272/current-challenges-in-the-accurate-identification-of-streptococcus-pneumoniae-and-its-serogroups-serotypes-in-the-vaccine-era
#7
REVIEW
Rosemol Varghese, Ranjith Jayaraman, Balaji Veeraraghavan
Streptococcus pneumoniae is a major cause of pneumonia, meningitis and other invasive diseases resulting in high mortality and morbidity among children under the age of five. Inaccurate identification of S. pneumoniae masks the exact estimation of disease burden and could delay treatment options. This is the common problem most frequently faced in developing countries due to several reasons that include poor infrastructure, insensitive operational procedures and lack of expertise. Inconsistent methods for phenotypic detection often delay the early identification and confirmation of S...
August 2, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28776337/changes-in-the-serotype-distribution-among-antibiotic-resistant-carriage-streptococcus-pneumoniae-isolates-in-children-after-the-introduction-of-the-extended-valency-pneumococcal-conjugate-vaccine
#8
Joon Kee Lee, Ki Wook Yun, Eun Hwa Choi, Sun Jung Kim, Seong Yeon Lee, Hoan Jong Lee
This study investigated the serotype distribution and antimicrobial resistance of 3,820 nasopharyngeal Streptococcus pneumoniae isolates from infants and children who presented with respiratory symptoms at Seoul National University Children's Hospital from July 2010 to June 2015 after the introduction of the extended-valency pneumococcal conjugate vaccines (PCVs). Serotypes and antimicrobial susceptibility were determined using the Quellung reaction and E-test, respectively. S. pneumoniae was isolated from 397 (10...
September 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28767518/bayesian-model-averaging-with-change-points-to-assess-the-impact-of-vaccination-and-public-health-interventions
#9
Esra Kürüm, Joshua L Warren, Cynthia Schuck-Paim, Roger Lustig, Joseph A Lewnard, Rodrigo Fuentes, Christian A W Bruhn, Robert J Taylor, Lone Simonsen, Daniel M Weinberger
BACKGROUND: Pneumococcal conjugate vaccines (PCVs) prevent invasive pneumococcal disease and pneumonia. However, some low- and middle-income countries have yet to introduce PCV into their immunization programs due, in part, to lack of certainty about the potential impact. Assessing PCV benefits is challenging because specific data on pneumococcal disease is often lacking, and it can be difficult to separate the effects of factors other than the vaccine that could also affect pneumococcal disease rates...
July 31, 2017: Epidemiology
https://www.readbyqxmd.com/read/28765563/quantitative-proteomics-of-cerebrospinal-fluid-in-paediatric-pneumococcal-meningitis
#10
Guadalupe Gómez-Baena, Richard J Bennett, Carmen Martínez-Rodríguez, Małgorzata Wnęk, Gavin Laing, Graeme Hickey, Lynn McLean, Robert J Beynon, Enitan D Carrol
Streptococcus pneumoniae is responsible for diseases causing major global public health problems, including meningitis, pneumonia and septicaemia. Despite recent advances in antimicrobial therapy, pneumococcal meningitis remains a life-threatening disease. Furthermore, long-term sequelae are a major concern for survivors. Hence, a better understanding of the processes occurring in the central nervous system is crucial to the development of more effective management strategies. We used mass spectrometry based quantitative proteomics to identify protein changes in cerebrospinal fluid from children with Streptococcus pneumoniae infection, compared with children admitted to hospital with bacterial meningitis symptoms but negative diagnosis...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28763425/frequency-of-acute-otitis-media-in-children-under-24-months-of-age-before-and-after-the-introduction-of-the-10-valent-pneumococcal-conjugate-vaccine-into-the-national-immunization-program-in-chile
#11
Andrés Rosenblut, Macarena Rosenblut, Karen García, Ximena Maul
BACKGROUND: Streptococcus pneumoniae is the leading cause of acute otitis media (AOM). Pneumococcal non-typable Haemophilus influenzae Protein D Conjugate Vaccine (PCV-10) was introduced to the Chilean national immunization program (NIP) in 2011. The aim of this study was to estimate the frequency of AOM in children < 24 months of age attending the Emergency Department (ED) of Hospital Sótero del Río (HSR) 4 years before and 4 years after the introduction of PCV-10 in the Chilean NIP...
July 31, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28745918/a-systematic-review-about-streptococcus-pneumoniae-serotype-distribution-in-children-in-mainland-of-china-before-the-pcv13-was-licensed
#12
Shuang Lyu, Hui-Li Hu, Yong-Hong Yang, Kai-Hu Yao
Streptococcus pneumoniae (S. pneumoniae) is a major pathogen of infectious diseases in children. Surveillance of the distribution of pneumococcus serotypes is important for immunization strategies of pneumococcal polysaccharide conjugate vaccines (PCVs). Areas covered: This article is a systematic review of studies conducted from 2006 to 2016 that document serotypes of S. pneumoniae isolated from children less than 14 years old in the mainland of China. A total of 40 studies were included in this review. Serotypes 19F, 19A, 23F, 14 and 6B were the most common...
July 26, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28744663/serotypes-of-streptococcus-pneumoniae-in-egyptian-children-are-they-covered-by-pneumococcal-conjugate-vaccines
#13
M Badawy, A El Kholy, M M Sherif, E A Rahman, E Ashour, H Sherif, H E Mahmoud, M Hamdy
In Egypt, pneumococcal vaccines have not yet been introduced as being compulsory. Identification of the circulating serotypes in Egypt is mandatory to determine whether or not the pneumococcal vaccines will be beneficial. The current study aims to identify the serotypes, vaccine coverage, and antimicrobial resistance of Streptococcus pneumoniae colonizing the nasopharynx of Egyptian children younger than 5 years old. The study was conducted in two successive winter seasons (December 2012-February 2013 and December 2013-February 2014)...
July 25, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28737858/the-effects-of-pneumococcal-conjugate-vaccine-pcv7-and-pcv13-on-turkish-children-with-invasive-pneumococcal-disease-a-single-center-experience
#14
Halil Özdemir, Caner Yıldız, Selin Nar Ötgün, Hatice Erkol, Adem Karbuz, Bilge Aldemir Kocabaş, Tuğçe Tural Kara, Ayşegül Gözalan, Rıza Durmaz, Ergin Çiftçi, Derya Aysev, Erdal İnce
INTRODUCTION: The aim of this prospective single-center study was to determine the changings in incidence of invasive pneumococcal disease (IPD), serotype distribution and the antimicrobial resistance patterns of S. pneumoniae in children with IPD after the period (1 to 7 years) of vaccination with PCV7 (2008) and PCV13 (2011). POPULATION AND METHODS: The study was conducted on 39 Turkish children with IPD between ages 1 month and 18 years in Ankara, Turkey. Streptococcus pneumoniae was identified using standard laboratory procedures from blood, cerebrospinal fluid (CSF), pleural fluid, and other sterile body fluids and tissues...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28737622/changes-in-the-nature-and-severity-of-invasive-pneumococcal-disease-in-children-before-and-after-the-7-valent-and-13-valent-pneumococcal-conjugate-vaccine-programs-in-calgary-canada
#15
Leah J Ricketson, Nicholas G Conradi, Otto G Vanderkooi, James D Kellner
BACKGROUND: Since the introduction of childhood pneumococcal conjugate vaccines, invasive pneumococcal disease (IPD) incidence has decreased in children and the predominant serotypes causing disease have changed. This study describes changes in the clinical features of IPD in children (<18 years) before and after conjugate vaccine introduction. METHODS: The Calgary Area Streptococcus pneumoniae Epidemiology Research (CASPER) study collects information on all IPD cases in Calgary, Alberta, Canada...
July 20, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28736993/molecular-characterization-of-streptococcus-pneumoniae-particularly-serotype19a-st320-that-emerged-in-krasnoyarsk-russia
#16
Irina N Protasova, Tsai-Wen Wan, Natalya V Bakhareva, Wei-Chun Hung, Wataru Higuchi, Yasuhisa Iwao, Tatyana A Yelistratova, Natalya A Ilyenkova, Yelena S Sokolovskaya, Galina P Martynova, Ivan V Reva, Galina V Reva, Sergey V Sidorenko, Lee-Jene Teng, Olga V Peryanova, Alla B Salmina, Tatsuo Yamamoto
Streptococcus pneumoniae, a common human pathogen, colonizes the nasopharynx and causes diseases including acute otitis media (AOM). We herein report pneumococcal serotype distributions in children before and after PCV7 vaccination and in patients with pneumococcal disease in Siberian Russia (Krasnoyarsk). Analyses included antimicrobial susceptibility testing, ST typing, a pulsed-field gel electrophoresis analysis, virulence-related surface protein gene (VSG) typing with novel primers, and a structural analysis by scanning electron microscopy...
July 23, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28736198/characterization-of-streptococcus-pneumoniae-invasive-serotype-19a-isolates-from-argentina-1993-2014
#17
Paula Gagetti, Diego Faccone, Vanesa Reijtman, Sofia Fossati, Marisa Rodriguez, Omar Veliz, Paola Ceriana, Mabel Regueira, Alejandra Corso
The aim of this study was to characterize Streptococcus pneumoniae serotype 19A isolates causing invasive pneumococcal disease in children, collected in Argentina between 1993 and 2014. A total of 176 isolates serotype 19A were analyzed. There was an increase in the proportion of serotype 19A isolates from 3% in 1993 to 6% in 2011, prior to the introduction of PCV13 in 2012, and from 2012 to 2014 its proportion gradually decreased. Penicillin resistance among serotype 19A isolates throughout the study period was 65...
July 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28736074/a-novel-genetic-variant-of-streptococcus-pneumoniae-serotype-11a-discovered-in-fiji
#18
Sam Manna, Belinda Ortika, Eileen M Dunne, Kathryn E Holt, Mike Kama, Fiona M Russell, Jason Hinds, Catherine Satzke
OBJECTIVES: As part of annual cross-sectional Streptococcus pneumoniae carriage surveys in Fiji (2012-2015), we detected pneumococci in over 100 nasopharyngeal swabs that serotyped as '11F-like' by microarray. We examined the genetic basis of this divergence in the 11F-like capsular polysaccharide (cps) locus, compared to the reference 11F cps sequence. The impact of this diversity on capsule phenotype, as well as serotyping results using genetic and serological methods, was determined...
July 20, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28729019/safety-reactogenicity-and-immunogenicity-of-two-investigational-pneumococcal-protein-based-vaccines-results-from-a-randomized-phase-ii-study-in-infants
#19
Roman Prymula, Leszek Szenborn, Sven-Arne Silfverdal, Jacek Wysocki, Piotr Albrecht, Magali Traskine, Asparuh Gardev, Yue Song, Dorota Borys
INTRODUCTION: Vaccination with formulations containing pneumococcal protein antigens such as pneumolysin toxoid (dPly) and histidine-triad protein D (PhtD) may extend serotype-related protection of pneumococcal conjugate vaccines (PCVs) against Streptococcus pneumoniae. METHODS: This phase II, multi-center, observer-blind trial conducted in Europe (NCT01204658) assessed 2 investigational vaccines containing 10 serotype-specific polysaccharide conjugates of PHiD-CV and either 10 or 30µg of dPly and PhtD each...
July 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28726625/risk-for-death-among-children-with-pneumonia-afghanistan
#20
Rahmani Zabihullah, Bhim G Dhoubhadel, Ferogh A Rauf, Sahab A Shafiq, Motoi Suzuki, Kiwao Watanabe, Lay M Yoshida, Michio Yasunami, Salihi Zabihullah, Christopher M Parry, Rabi Mirwais, Koya Ariyoshi
In Afghanistan, childhood deaths from pneumonia are high. Among 639 children at 1 hospital, the case-fatality rate was 12.1%, and 46.8% of pneumococcal serotypes detected were covered by the 13-valent vaccine. Most deaths occurred within 2 days of hospitalization; newborns and malnourished children were at risk. Vaccination could reduce pneumonia and deaths.
August 2017: Emerging Infectious Diseases
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