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Pneumococcal meningitis

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https://www.readbyqxmd.com/read/28087317/acute-otitis-media-caused-by-streptococcus-pneumoniae-serotype-19a-st320-clone-epidemiological-and-clinical-characteristics
#1
Hsin Chi, Nan-Chang Chiu, Fu-Yuan Huang, Chyong-Hsin Hsu, Kuo-Sheng Lee, Li-Min Huang, Yu-Chia Hsieh
BACKGROUND: Streptococcus pneumoniae serotype 19A ST320, a highly multiresistant and virulent clone, has emerged as a common pathogen causing acute otitis media (AOM) in children. METHODS: Patients aged 0-18 years with AOM who presented at Mackay Memorial Hospital, Taipei, Taiwan were prospectively enrolled between December 1, 2009, and November 30, 2012. For each patient, a specimen of middle-ear fluid was obtained and cultured. S. pneumoniae isolates were tested by serotyping, antibiotic-resistance profiling, and multilocus sequence typing...
December 19, 2016: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28086930/mannose-binding-lectin-associated-serine-protease-2-masp-2-contributes-to-poor-disease-outcome-in-humans-and-mice-with-pneumococcal-meningitis
#2
E Soemirien Kasanmoentalib, Mercedes Valls Seron, Bart Ferwerda, Michael W Tanck, Aeilko H Zwinderman, Frank Baas, Arie van der Ende, Matthijs C Brouwer, Diederik van de Beek
BACKGROUND: Pneumococcal meningitis is the most common and severe form of bacterial meningitis. Fatality rates are substantial, and long-term sequelae develop in about half of survivors. Disease outcome has been related to the severity of the pro-inflammatory response in the subarachnoid space. The complement system, which mediates key inflammatory processes, has been implicated as a modulator of pneumococcal meningitis disease severity in animal studies. METHODS: We investigated mannose-binding lectin-associated serine protease (MASP-2) levels in cerebrospinal fluid (CSF) samples derived from the diagnostic lumbar puncture, which was available for 307 of 792 pneumococcal meningitis episodes included in our prospective nationwide cohort study (39%), and the association between these levels and clinical outcome...
January 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28069358/pneumococcal-polysaccharide-vaccination-administered-early-after-neurotrauma-or-neurosurgery
#3
Anna Ljunghill Hedberg, Karlis Pauksens, Per Enblad, Jessika Söderberg, Björn Johansson, Helena Käyhty, Jan Sjölin
OBJECTIVES: Pneumococcal vaccination is recommended to lower the risk of posttraumatic meningitis, and early vaccination may be of importance. After both trauma and central nervous system injury, immune-suppression may occur, which could affect T-cell function and the response to T-cell dependent vaccines. We therefore aimed to investigate the response to early vaccination with a T-cell independent pneumococcal polysaccharide vaccine (PPSV). METHODS: Thirty-three patients with basilar skull fracture and 23 patients undergoing transsphenoidal pituitary gland surgery were vaccinated with PPSV within 10days after neurotrauma or neurosurgery...
January 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28042214/study-of-invasive-pneumococcal-infection-in-adults-with-reference-to-penicillin-resistance
#4
Vrishali Avinash Muley, Dnyaneshwari Purushottam Ghadage, Gauri Eknath Yadav, Arvind Vamanrao Bhore
BACKGROUND: Invasive pneumococcal infections often prove rapidly fatal, even where good medical treatment is readily available. In developed countries, up to 20% of people who contract pneumococcal meningitis die; however, in developing world, mortality is closer to 50%, even among hospitalized patients. The World Health Organization estimated 600,000-800,000 adult deaths each year from pneumococcal pneumonia, meningitis, and sepsis. AIMS: This study aims to estimate isolation rate of invasive pneumococcal infection in adults, to determine the antimicrobial susceptibility profile of Streptococcus pneumoniae isolates and to study the associated risk factors...
January 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28009001/real-time-qpcr-improves-meningitis-pathogen-detection-in-invasive-bacterial-vaccine-preventable-disease-surveillance-in-fiji
#5
Eileen M Dunne, Silivia Mantanitobua, Shalini P Singh, Rita Reyburn, Evelyn Tuivaga, Eric Rafai, Lisi Tikoduadua, Barbara Porter, Catherine Satzke, Janet E Strachan, Kimberly K Fox, Kylie M Jenkins, Adam Jenney, Silo Baro, E Kim Mulholland, Mike Kama, Fiona M Russell
As part of the World Health Organization Invasive Bacterial-Vaccine Preventable Diseases (IB-VPD) surveillance in Suva, Fiji, cerebrospinal fluid (CSF) samples from suspected meningitis patients of all ages were examined by traditional methods (culture, Gram stain, and latex agglutination for bacterial antigen) and qPCR for Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Of 266 samples tested, pathogens were identified in 47 (17.7%). S. pneumoniae was the most common pathogen detected (n = 17) followed by N...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27998266/impact-of-pneumococcal-conjugate-vaccines-on-pneumococcal-meningitis-cases-in-france-between-2001-and-2014-a-time-series-analysis
#6
Anna Alari, Hélène Chaussade, Matthieu Domenech De Cellès, Lénaig Le Fouler, Emmanuelle Varon, Lulla Opatowski, Didier Guillemot, Laurence Watier
BACKGROUND: Pneumococcal meningitis (PM) is a major invasive pneumococcal disease. Two pneumococcal conjugate vaccines (PCVs) have been introduced in France: PCV7 was recommended in 2003 and replaced in 2010 by PCV13, which has six additional serotypes. The impact of introducing those vaccines on the evolution of PM case numbers and serotype distributions in France from 2001 to 2014 is assessed herein. METHODS: Data on 5166 Streptococcus pneumoniae strains isolated from cerebrospinal fluid between 2001 and 2014 in the 22 regions of France were obtained from the National Reference Center for Pneumococci...
December 21, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27996380/a-reflection-on-invasive-pneumococcal-disease-and-pneumococcal-conjugate-vaccination-coverage-in-children-in-southern-europe-2009-2016
#7
Marta Moreira, Olga Castro, Melissa Palmieri, Sofia Efklidou, Stefano Castagna, Bernard Hoet
Higher-valent pneumococcal conjugate vaccines (PCVs) were licensed from 2009 in Europe; similar worldwide clinical effectiveness was observed for PCVs in routine use. Despite a proven medical need, PCV vaccination in Southern Europe remained suboptimal until 2015/16. We searched PubMed for manuscripts published between 2009 and mid-2016. Included manuscripts had to contain data about invasive pneumococcal disease (IPD) incidence, or vaccination coverage with higher-valent PCVs. This review represents the first analysis of vaccination coverage and impact of higher-valent PCVs on overall IPD in Southern European countries (Portugal, Spain, Italy, Greece, Cyprus)...
December 20, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27988089/predictors-of-mortality-among-u-s-veterans-with-streptococcus-pneumoniae-infections
#8
Jacob B Morton, Haley J Morrill, Kerry L LaPlante, Aisling R Caffrey
INTRODUCTION: Serious Streptococcus pneumoniae infections, encompassing pneumonia, bacteremia, and meningitis, are a major cause of mortality. However, literature regarding mortality is often limited to invasive pneumococcal disease, excluding pneumonia. This study sought to identify predictors of mortality among adults with serious pneumococcal disease, including pneumonia and invasive pneumococcal disease. METHODS: This was a nested case-control study of unvaccinated older Veterans with positive S...
December 14, 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27986682/long-term-impact-of-a-3-0-schedule-for-7-and-13-valent-pneumococcal-conjugate-vaccines-on-invasive-pneumococcal-disease-in-australia-2002-2014
#9
Sanjay Jayasinghe, Rob Menzies, Clayton Chiu, Cindy Toms, Christopher C Blyth, Vicki Krause, Peter McIntyre
BACKGROUND: Australia introduced universal 7-valent pneumococcal conjugate vaccine (PCV7) from 2005, replaced by 13-valent PCV (PCV13) in 2011, uniquely among high-income countries giving doses at 2, 4, and 6 months (3 + 0 schedule). Data on impact of a timely 3 + 0 PCV schedule with high coverage are sparse, with none for PCV13. METHODS: We used national surveillance of invasive pneumococcal disease (IPD) from 2002 for baseline and appropriate later comparison periods to calculate incidence rate ratios (IRRs) by serotype and age using a Poisson model...
October 21, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27956163/invasive-pneumococcal-disease-in-children-aged-younger-than-5-years-in-india-a-surveillance-study
#10
Anand Manoharan, Vikas Manchanda, Sundaram Balasubramanian, Sanjay Lalwani, Meera Modak, Sushama Bai, Ajith Vijayan, Anita Shet, Savitha Nagaraj, Sunil Karande, Gita Nataraj, Vijay N Yewale, Shrikrishna A Joshi, Ranganathan N Iyer, Mathuram Santosham, Geoffrey D Kahn, Maria Deloria Knoll
BACKGROUND: Invasive pneumococcal disease continues to be a major cause of morbidity and mortality among children younger than 5 years of age in India. We aimed to provide nationally representative data for the pattern of disease due to Streptococcus pneumoniae, trends in the serotype of invasive pneumococci, and invasive pneumococci antimicrobial resistance patterns, in India. METHODS: In this prospective hospital-based and retrospective laboratory-based surveillance study, we prospectively enrolled children aged younger than 5 years with suspected or proven invasive pneumococcal disease from 18 hospitals or institutional centres and retrospectively included laboratory-confirmed pneumococcal isolates from ten sentinel laboratories, together representing 11 states in India...
December 9, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/27943624/temporal-cross-correlation-between-influenza-like-illnesses-and-invasive-pneumococcal-disease-in-the-netherlands
#11
Wilke Hendriks, Hendriek Boshuizen, Arnold Dekkers, Mirjam Knol, Ge A Donker, Arie van der Ende, Hester Korthals Altes
BACKGROUND: While the burden of community-acquired pneumonia and invasive pneumococcal disease (IPD) is still considerable, there is little insight in the factors contributing to disease. Previous research on the lagged relationship between respiratory viruses and pneumococcal disease incidence is inconclusive, and studies correcting for temporal autocorrelation are lacking. OBJECTIVES: To investigate the temporal relation between influenza-like illnesses (ILI) and IPD, correcting for temporal autocorrelation...
December 10, 2016: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/27941979/impact-and-effectiveness-of-10-and-13-valent-pneumococcal-conjugate-vaccines-on-hospitalization-and-mortality-in-children-aged-less-than-5-years-in-latin-american-countries-a-systematic-review
#12
Lucia Helena de Oliveira, Luiz Antonio B Camacho, Evandro S F Coutinho, Martha S Martinez-Silveira, Ana Flavia Carvalho, Cuauhtemoc Ruiz-Matus, Cristiana M Toscano
BACKGROUND: Several Latin American and Caribbean (LAC) countries have introduced pneumococcal conjugate vaccine (PCV-10 or PCV-13) in their routine national immunization programs. OBJECTIVES: We aimed to summarize the evidence of PCV impact and effectiveness in children under 5 years old in the LAC Region. METHODS: We conducted a systematic review of the literature on impact or effectiveness of PCVs on deaths or hospitalizations due to invasive pneumococcal disease (IPD), pneumonia, meningitis and sepsis...
2016: PloS One
https://www.readbyqxmd.com/read/27939287/serotypes-antimicrobial-resistance-and-genotypes-of-streptococcus-pneumoniae-associated-with-infections-in-cancer-patients-in-brazil
#13
Nayara Torres Cardoso, Bárbara Araújo Santos, André Victor Barbosa, Silvana Vargas Superti, Lúcia Martins Teixeira, Felipe Piedade Gonçalves Neves
We sought to characterize pneumococcal isolates associated with bacteremia, pneumonia and meningitis in cancer patients and to estimate the coverage of the available pneumococcal vaccines. Fifty isolates recovered from 49 patients attending a cancer reference center over a 1-year period were analyzed. The prevalent serotypes were: 23F (12%), 6A (8%), 3, 4, 20, and 23A (6% each). All isolates were susceptible to chloramphenicol, levofloxacin, rifampicin, and vancomycin. Resistance or reduced susceptibility to penicillin made up 14%, and one isolate was also intermediately resistant to ceftriaxone...
November 28, 2016: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27925848/hospitalizations-for-pneumonia-invasive-diseases-and-otitis-in-tuscany-italy-2002-2014-which-was-the-impact-of-universal-pneumococcal-pediatric-vaccination
#14
Sara Boccalini, Ornella Varone, Martina Chellini, Luca Pieri, Antonino Sala, Cesare Berardi, Paolo Bonanni, Angela Bechini
Streptococcus pneumoniae is the main causative organism of acute media otitis in children and meningitis and bacterial pneumonia in the community. Since 2008 in Tuscany, central Italy, the pneumococcal conjugate vaccine (7-valent vaccine, switched to 13-valent vaccine in 2010) was actively offered free of charge to all newborns. Aim of the study is to evaluate the impact of pneumococcal pediatric vaccination in the Tuscan population on hospitalizations potentially caused by S. pneumoniae, during pre-vaccination (PVP, 2002-2007) and vaccination period (VP, 2009-2014)...
December 7, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27917323/development-and-evaluation-of-a-novel-vaccine-against-prevalent-invasive-multi-drug-resistant-strains-of-streptococcus-pneumoniae
#15
Rehab H Bahy, Hayam M Hamouda, Amal S Shahat, Aymen S Yassin, Magdy A Amin
Streptococcus pneumoniae is a pathogen that causes serious invasive infections, such as septicemia, meningitis and pneumonia in addition to mild upper respiratory tract infections. Protection from pneumococcal diseases is thought to be mediated mainly by serotype-specific antibodies to capsular antigens. Pneumococcal conjugate vaccine consists of sugars (polysaccharides) from the capsule of the bacterium S. pneumoniae that are conjugated to a carrier protein. Three pneumococcal conjugated vaccines, each directed against a group of serotypes, are registered in Egypt; however, local vaccine production is required to cover the most prevalent serotypes...
2016: PeerJ
https://www.readbyqxmd.com/read/27916211/a-32-year-study-of-the-effect-of-pneumococcal-vaccines-on-invasive-streptococcus-pneumoniae-disease
#16
Ronald J Stanek, Nancy B Norton, Maurice A Mufson
BACKGROUND: Worldwide, Streptococcus pneumoniae commonly causes community-acquired pneumonia, meningitis, septicemia and otitis media. Invasive pneumococcal infection (IPD) represents the most serious presentation, occurs in approximately 1 in 4 cases and engenders case fatality rates (CFR) in pneumonia of 20-25% and meningitis of 35-40%. We investigated IPD for 32 years in an American city to assess the effect of differing pneumococcal vaccines on serotype occurrence and CFR among children and adults...
December 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27889801/production-and-purification-of-an-untagged-recombinant-pneumococcal-surface-protein-a-pspa4pro-with-high-purity-and-low-endotoxin-content
#17
Douglas B Figueiredo, Eneas Carvalho, Mauricio P Santos, Stefanie Kraschowetz, Rafaela T Zanardo, Gilson Campani, Gabriel G Silva, Cíntia R Sargo, Antonio Carlos L Horta, Roberto de C Giordano, Eliane N Miyaji, Teresa C Zangirolami, Joaquin Cabrera-Crespo, Viviane Maimoni Gonçalves
Streptococcus pneumoniae is the main cause of pneumonia, meningitis, and other conditions that kill thousands of children every year worldwide. The replacement of pneumococcal serotypes among the vaccinated population has evidenced the need for new vaccines with broader coverage and driven the research for protein-based vaccines. Pneumococcal surface protein A (PspA) protects S. pneumoniae from the bactericidal effect of human apolactoferrin and prevents complement deposition. Several studies indicate that PspA is a very promising target for novel vaccine formulations...
November 26, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27884476/systemic-immunization-with-rpotd-reduces-streptococcus-pneumoniae-nasopharyngeal-colonization-in-mice
#18
T R Converso, C Goulart, D Rodriguez, M Darrieux, L C C Leite
Streptococcus pneumoniae (pneumococcus) is a human pathogen that can cause otitis media, pneumonia and, in severe cases, meningitis and bacteremia. The pneumococcus expresses PotD, a protein belonging to the polyamines transporter complex called PotABCD. PotD is a membrane-associated protein that binds polyamines and has been shown to be important for virulence. In this work we demonstrate that subcutaneous immunization with rPotD reduces the bacterial load in the nasal tissue of mice, following intranasal challenge with a type 6B pneumococcus...
January 3, 2017: Vaccine
https://www.readbyqxmd.com/read/27879558/impact-of-pneumococcal-conjugate-vaccines-on-selected-head-and-neck-infections-in-hospitalized-israeli-children
#19
Tal Marom, Shiran Bookstein Peretz, Orna Schwartz, Abraham Goldfarb, Yahav Oron, Sharon Ovnat Tamir
INTRODUCTION: Streptococcus pneumoniae is a major pathogen of pediatric head and neck infections (HNIs), e.g. acute otitis media (AOM), acute mastoiditis (AM), acute bacterial sinusitis (ABS) and meningitis. The aim of the study was to characterize the epidemiology of pneumococcal HNIs (pHNIs) before, during, and after the introduction of pneumococcal conjugate vaccines (PCVs). METHODS: Children 0-16 years who were hospitalized with HNIs in the Pediatrics Department in a general hospital between 1/1/2007-12/31/2014 were retrospectively identified...
November 22, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27864448/evaluation-of-a-rapid-antigen-test-for-detection-of-streptococcus-pneumoniae-in-cerebrospinal-fluid
#20
Angel Boulos, Derek Fairley, James McKenna, Peter Coyle
Detection of Streptococcus pneumoniae antigen in cerebrospinal fluid (CSF) using lateral flow immunochromatography tests (ICTs) is an effective, rapid and low-cost method to diagnose pneumococcal meningitis. This study evaluated the diagnostic accuracy of the Uni-Gold ICT to detect pneumococcal antigen in CSF specimens, compared with gold standard bacteriology and quantitative real-time PCR (qPCR) testing. CSF specimens (n=69) from patients with suspected bacterial meningitis were included in the study. 13/69 (19%) were positive and 56/69 (81%) were negative for pneumococcus by the gold standard tests...
November 18, 2016: Journal of Clinical Pathology
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