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Pneumococcal invasive disease

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https://www.readbyqxmd.com/read/28729050/an-infant-with-concurrent-serotype-6c-invasive-pneumococcal-disease-and-infectious-mononucleosis
#1
Naoko Nishikawa-Nakamura, Takafumi Okada, Keiko Nishimura, Tsuyako Iwai, Kimiko Ubukata, Satoshi Iwata, Asayuki Iwai
Streptococcus pneumoniae is a main causative agent of serious invasive bacterial infections. However, concurrent infection with invasive pneumococcal disease (IPD) and viral infectious mononucleosis (IM) is rare. We report an infant with serotype 6C infection causing IPD occurring simultaneously with IM. A previously healthy 11-month-old girl referred to our hospital because of fever, leukopenia, and elevated C-reactive protein presented to us with disturbance of consciousness, tachycardia, tachypnea and agranulocytosis...
July 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28729018/sustained-reduction-in-vaccine-type-invasive-pneumococcal-disease-despite-waning-effects-of-a-catch-up-campaign-in-kilifi-kenya-a-mathematical-model-based-on-pre-vaccination-data
#2
John Ojal, Stefan Flasche, Laura L Hammitt, Donald Akech, Moses C Kiti, Tatu Kamau, Ifedayo Adetifa, Markku Nurhonen, J Anthony G Scott, Kari Auranen
BACKGROUND: In 2011, Kenya introduced the 10-valent pneumococcal conjugate vaccine together with a catch-up campaign for children aged <5years in Kilifi County. In a post-vaccination surveillance study based in Kilifi, there was a substantial decline in invasive pneumococcal disease (IPD). However, given the continued circulation of the vaccine serotypes it is possible that vaccine-serotype disease may re-emerge once the effects of the catch-up campaign wear off. METHODS: We developed a compartmental, age-structured dynamic model of pneumococcal carriage and invasive disease for three serotype groups: the 10-valent vaccine serotypes and two groups of non-vaccine serotypes based on their susceptibility to mutual competition...
July 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28727941/mucin-1-is-a-novel-glycoprotein-involved-in-host-defense-against-invasive-pneumococcal-disease
#3
Jose Yuste
No abstract text is available yet for this article.
July 20, 2017: Virulence
https://www.readbyqxmd.com/read/28723870/osteoarticular-infections-caused-by-streptococcus-pneumoniae-in-children-in-the-post-pneumococcal-conjugate-vaccine-era
#4
Liset Olarte, Jose Romero, William Barson, John Bradley, Philana Ling Lin, Laurence Givner, Tina Tan, Jill Hoffman, Kristina G Hultén, Edward O Mason, Sheldon L Kaplan
BACKGROUND: Pneumococcal osteoarticular infections (OAI) are an uncommon manifestation of invasive pneumococcal disease (IPD). We describe the demographic characteristics, hospitalization rate, serotype distribution and antibiotic susceptibility of children with pneumococcal OAI over a 16-year period. METHODS: We identified patients ≤18 years old with pneumococcal OAI at 8 children's hospitals in the United States (2000-2015). Pneumococcal isolates were collected prospectively...
July 18, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28716556/impact-of-pneumococcal-conjugate-vaccine-pcv7-and-pcv13-on-pneumococcal-invasive-diseases-in-italian-children-and-insight-into-evolution-of-pneumococcal-population-structure
#5
Romina Camilli, Fabio D'Ambrosio, Maria Del Grosso, Fernanda Pimentel de Araujo, Maria Grazia Caporali, Martina Del Manso, Giovanni Gherardi, Fortunato D'Ancona, Annalisa Pantosti
BACKGROUND: The use of PCV7 for children immunization was gradually implemented in the Italian regions starting from 2006 and was replaced by PCV13 in 2010-2011. In this study we aimed to assess the PCV impact on invasive pneumococcal diseases (IPD) incidence, serotype distribution and antibiotic resistance in Italian children under 5years old. METHODS: All IPD cases in children from 5 Italian regions (Emilia-Romagna, Lombardia, A. P. Bolzano, A. P. Trento, and Piemonte) reported through the nationwide surveillance system during 2008-2014 were included in this study...
July 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28713020/pneumolysin-induced-autophagy-contributes-to-inhibition-of-osteoblast-differentiation-through-downregulation-of-sp1-in-human-osteosarcoma-cells
#6
Jinwook Kim, Hee-Weon Lee, Dong Kwon Rhee, James C Paton, Suhkneung Pyo
BACKGROUND INFORMATION: The 53kDa protein pneumolysin (PLY) is the main virulence factor of Streptococcus pneumoniae, a leading cause of invasive pneumococcal diseases. PLY forms pores in cholesterol-containing membranes, thereby interfering with the function of cells. Bone destruction is a serious matter in chronic inflammatory diseases such as septic arthritis and osteomyelitis. S. pneumoniae is increasingly being recognized as a common cause of septic arthritis, but its pathogenesis is poorly defined...
July 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28712384/the-epidemiology-of-invasive-pneumococcal-disease-in-older-adults-in-the-post-pcv-era-has-there-been-a-herd-effect
#7
M Corcoran, I Vickers, J Mereckiene, S Murchan, S Cotter, M Fitzgerald, M McElligott, M Cafferkey, D O'Flanagan, R Cunney, H Humphreys
The 7 and 13-valent pneumococcal conjugate vaccines (PCVs) have reduced the incidence of invasive pneumococcal disease (IPD) in children in many countries. The objective of this work was to assess the impact of PCVs and potential herd-protection in older adults in Ireland. IPD notification and typing data from adults ⩾65 years of age from July 2007 to June 2016 was assessed using national surveillance data. There was a 94% reduction in PCV7 serotypes from 2007-2008 to 2015-2016, incidence rate ratio (IRR 0·05, P < 0·0001)...
August 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28711510/serotyping-of-brunei-pneumococcal-clinical-strains-and-the-investigation-of-their-capability-to-adhere-and-invade-a-brain-endothelium-model
#8
Nurul Adhwa Rahman, Aishah Sharudin, Suwarni Diah, Siti Hanna Muharram
INTRODUCTION: Pneumococcal infections have caused morbidity and mortality globally. Streptococcus pneumoniae (pneumococci) are commensal bacteria that colonize the nasopharynx, asymptomatically. From there, pneumococci can spread in the lungs causing pneumonia and disseminate in the bloodstream causing bacteremia (sepsis) and reach the brain leading to meningitis. Endothelial cells are one of the most important components of the blood-brain barrier that separates the blood from the brain and plays the first protective role against pneumococcal entry...
July 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28711389/population-genetic-structure-antibiotic-resistance-capsule-switching-and-evolution-of-invasive-pneumococci-before-conjugate-vaccination-in-malawi
#9
Chrispin Chaguza, Jennifer E Cornick, Cheryl P Andam, Rebecca A Gladstone, Maaike Alaerts, Patrick Musicha, Chikondi Peno, Naor Bar-Zeev, Arox W Kamng'ona, Anmol M Kiran, Chisomo L Msefula, Lesley McGee, Robert F Breiman, Aras Kadioglu, Neil French, Robert S Heyderman, William P Hanage, Stephen D Bentley, Dean B Everett
INTRODUCTION: Pneumococcal infections cause a high death toll in Sub Saharan Africa (SSA) but the recently rolled out pneumococcal conjugate vaccines (PCV) will reduce the disease burden. To better understand the population impact of these vaccines, comprehensive analysis of large collections of pneumococcal isolates sampled prior to vaccination is required. Here we present a population genomic study of the invasive pneumococcal isolates sampled before the implementation of PCV13 in Malawi...
July 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28711387/serotype-distribution-and-antimicrobial-susceptibility-pattern-in-children%C3%A2-5years-with-invasive-pneumococcal-disease-in-india-a-systematic-review
#10
REVIEW
Jyotsana Singh, Suba Sundaresan, Anand Manoharan, Anita Shet
BACKGROUND: Streptococcus pneumoniae is a leading cause of childhood diseases that result in significant morbidity and mortality in India. Commercially licensed and available pneumococcal conjugate vaccines (PCVs) include ten (PCV-10) and 13 (PCV-13) pneumococcal serotypes. Vaccines with other serotype combinations are under development. Reviewing and reporting trends and distribution of pneumococcal serotypes causing invasive pneumococcal disease in India will be useful for policy making as PCV is being introduced into India's universal immunization program...
July 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28704347/pneumococcal-vaccination-among-medicare-beneficiaries-occurring-after-the-advisory-committee-on-immunization-practices-recommendation-for-routine-use-of-13-valent-pneumococcal-conjugate-vaccine-and-23-valent-pneumococcal-polysaccharide-vaccine-for-adults-aged
#11
Carla L Black, Walter W Williams, Rob Warnock, Tamara Pilishvili, David Kim, Jeffrey A Kelman
On September 19, 2014, CDC published the Advisory Committee on Immunization Practices (ACIP) recommendation for the routine use of 13-valent pneumococcal conjugate vaccine (PCV13) among adults aged ≥65 years, to be used in series with 23-valent pneumococcal polysaccharide vaccine (PPSV23) (1). This replaced the previous recommendation that adults aged ≥65 years should be vaccinated with a single dose of PPSV23. As a proxy for estimating PCV13 and PPSV23 vaccination coverage among adults aged ≥65 years before and after implementation of these revised recommendations, CDC analyzed claims for vaccination submitted for reimbursement to the Centers for Medicare & Medicaid Services (CMS)...
July 14, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28700505/sepsis-due-to-streptococcus-pneumoniae-associated-with-secondary-hemophagocytic-lymphohistiocytosis-in-a-splenectomized-patient-for-spherocytosis-a-case-report
#12
Victoria Birlutiu, Rares Mircea Birlutiu
RATIONALE: Hemophagocytic lymphohistiocytosis (HLH) is a syndrome that is characterized by an inappropriate hyperinflammatory immune response - primary, as a consequence of a genetic defect of NK cells and cytotoxic T lymphocytes or - secondary, in the progression of infections, rheumatic or autoimmune diseases, malignancies or metabolic diseases. PATIENT CONCERNS: We present the case of a secondary HLH due to Streptococcus pneumoniae infection in a splenectomised patient for spherocytosis, a 37-year-old patient who was splenectomised in childhood for spherocytosis, without immuneprophylaxis induced by antipneumococcal vaccine...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28700264/overall-effectiveness-of-pneumococcal-conjugate-vaccines-an-economic-analysis-of-phid-cv-and-pcv-13-in-the-immunization-of-infants-in-italy
#13
Paolo Castiglia, Lorenzo Pradelli, Stefano Castagna, Veronica Freguglia, Giorgio Palù, Susanna Esposito
Pneumococcal diseases are associated with a significant clinical and economic burden. The 7-valent pneumococcal conjugate vaccine (PCV-7) has been used for the immunization of newborns against invasive pneumococcal diseases (IPD) in Italy while now the pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) and the 13-valent pneumococcal conjugate vaccine (PCV-13) are available. The aim of this analysis was to compare the estimated health benefits, cost and cost-effectiveness of immunization strategies vs...
July 12, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28696530/immunogenicity-and-safety-of-single-dose-13-valent-pneumococcal-conjugate-vaccine-in-pediatric-and-adolescent-oncology-patients
#14
Te-Yu Hung, Rishi S Kotecha, Christopher C Blyth, Sarah K Steed, Ruth B Thornton, Anne L Ryan, Catherine H Cole, Peter C Richmond
BACKGROUND: Children receiving immunosuppressive treatment for cancer are at high risk for invasive pneumococcal disease. The 13-valent pneumococcal conjugate vaccine (PCV13) can prevent pneumococcal disease in healthy children; however, there is an absence of literature regarding the benefit of PCV13 in immunocompromised children with cancer. METHODS: A prospective, open-label cohort study recruited children between ages 1 and 18 years who were receiving active immunosuppressive therapy (AIT) or were within 12 months after completing immunosuppressive therapy (CIT)...
July 11, 2017: Cancer
https://www.readbyqxmd.com/read/28693751/cost-effectiveness-of-13-valent-pneumococcal-conjugate-vaccine-pcv13-in-older-australians
#15
S Dirmesropian, J G Wood, C R MacIntyre, P Beutels, P McIntyre, R Menzies, J F Reyes, C Chen, A T Newall
BACKGROUND: The 23-valent pneumococcal polysaccharide vaccine (PPV23) has been funded under the Australia National Immunisation Program (NIP) since January 2005 for those aged >65years and other risk groups. In 2016, PCV13 was accepted by the Pharmaceutical Benefits Advisory Committee (PBAC) as a replacement for a single dose of PPV23 in older Australian adults. METHODS: A single-cohort deterministic multi-compartment (Markov) model was developed describing the transition of the population between different invasive and non-invasive pneumococcal disease related health states...
August 3, 2017: Vaccine
https://www.readbyqxmd.com/read/28690025/invasive-pneumococcal-disease-caused-by-ceftriaxone-resistant-streptococcus-pneumoniae-in-taiwan
#16
Hao-Yuan Lee, Tsu-Lan Wu, Lin-Hui Su, Hsin-Chieh Li, Rajendra Prasad Janapatla, Chyi-Liang Chen, Cheng-Hsun Chiu
BACKGROUND: Invasive pneumococcal disease (IPD) was associated with mortality, but the risk factors associated with mortality remains controversial. METHODS: A retrospective cohort study was designed. All patients with IPD from 2011 to 2013 admitted in a medical center were screened and collected for their clinical presentations and laboratory characteristics. RESULTS: Approximately half of the 134 IPD isolates derived from these patients belonged to three major serotypes (19A, 6A and 3), which are included in 13-valent pneumococcal conjugate vaccine (PCV13), but not in 7-valent pneumococcal conjugate vaccine (PCV7)...
June 26, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28675587/invasive-pneumococcal-disease-in-children-with-sickle-cell-disease-in-the-pneumococcal-conjugate-vaccine-era
#17
Olufunke O Martin, Kristin L Moquist, Jane M Hennessy, Stephen C Nelson
Invasive pneumococcal disease (IPD) in children with sickle cell disease (SCD) can be devastating. We sought to assess the impact of IPD in children with SCD since licensure of the pneumococcal conjugate vaccines (PCVs). We found 11 cases of IPD giving an incidence of 417 per 100,000 person-years, much higher than that reported in children without SCD. Although all isolates were sensitive to penicillin, 89% of isolates were nonvaccine serotypes. Further study is needed to characterize the incidence of and risk factors for the development of IPD in SCD in the PCV era to help drive better prevention strategies...
July 4, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28673213/primary-prevention-in-the-intensive-care-unit-a-prospective-single-centre-study-of-the-risk-factors-for-invasive-pneumococcal-disease
#18
A R Chapman, E L Litton
Invasive pneumococcal disease is a significant health burden in Australia, with immunisation recommended for children and at-risk adults. Health benefits of immunisation are clear, but less effective when immunisation rates are low, as in Western Australia. We hypothesised that patients admitted unplanned to the intensive care unit (ICU) would have high eligibility for pneumococcal immunisation, but low rates of recorded vaccine administration. We performed a prospective observational study of 119 emergency admissions to Royal Perth ICU, a 20-bed mixed ICU at a tertiary teaching hospital in Western Australia...
July 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28671978/estimated-severe-pneumococcal-disease-cases-and-deaths-before-and-after-pneumococcal-conjugate-vaccine-introduction-in-children-younger-than-5-years-of-age-in-south-africa
#19
Claire von Mollendorf, Stefano Tempia, Anne von Gottberg, Susan Meiring, Vanessa Quan, Charles Feldman, Jeane Cloete, Shabir A Madhi, Katherine L O'Brien, Keith P Klugman, Cynthia G Whitney, Cheryl Cohen
INTRODUCTION: Streptococcus pneumoniae is a leading cause of severe bacterial infections globally. A full understanding of the impact of pneumococcal conjugate vaccine (PCV) on pneumococcal disease burden, following its introduction in 2009 in South Africa, can support national policy on PCV use and assist with policy decisions elsewhere. METHODS: We developed a model to estimate the national burden of severe pneumococcal disease, i.e. disease requiring hospitalisation, pre- (2005-2008) and post-PCV introduction (2012-2013) in children aged 0-59 months in South Africa...
2017: PloS One
https://www.readbyqxmd.com/read/28668572/characteristics-of-pediatric-invasive-pneumococcal-diseases-and-the-pneumococcal-isolates-in-suzhou-china-before-introduction-of-pcv13
#20
Xiyan Zhang, Jianmei Tian, Wei Shan, Jian Xue, Yunzhen Tao, Qian Geng, Yunfang Ding, Genming Zhao, Tao Zhang
BACKGROUND: Data on characteristics of invasive pneumococcal diseases (IPD) is limited in China. We aimed to understand the clinical features and explore the molecular characteristics of the pneumococcal isolates in China. METHODS: Since 2010, we prospectively collected the pneumococcal isolates and the IPD patients' demographic and clinical information in Suzhou University Affiliated Children's Hospital (SCH). The antibiotic susceptibility, serotypes, genotypes of Streptococcus pneumoniae strains were identified by E-test, quellung reaction and/or multiplex PCR, and multi-locus sequence typing, respectively...
June 28, 2017: Vaccine
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