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Pneumococcal meningitis

Brenda Anna Kwambana-Adams, Franklin Asiedu-Bekoe, Badu Sarkodie, Osei Kuffour Afreh, George Khumalo Kuma, Godfred Owusu-Okyere, Ebenezer Foster-Nyarko, Sally-Ann Ohene, Charles Okot, Archibald Kwame Worwui, Catherine Okoi, Madikay Senghore, Jacob Kweku Otu, Chinelo Ebruke, Richard Bannerman, Kwame Amponsa-Achiano, David Opare, Gemma Kay, Timothy Letsa, Owen Kaluwa, Ebenezer Appiah-Denkyira, Victor Bampoe, Syed M A Zaman, Mark J Pallen, Umberto D'Alessandro, Jason M Mwenda, Martin Antonio
BACKGROUND: An outbreak of pneumococcal meningitis among non-infant children and adults occurred in the Brong-Ahafo region of Ghana between December 2015 and April 2016 despite the recent nationwide implementation of a vaccination programme for infants with the 13-valent pneumococcal conjugate vaccine (PCV13). METHODS: Cerebrospinal fluid (CSF) specimens were collected from patients with suspected meningitis in the Brong-Ahafo region. CSF specimens were subjected to Gram staining, culture and rapid antigen testing...
October 18, 2016: BMC Infectious Diseases
Martin Böhland, Eugenia Kress, Matthias B Stope, Thomas Pufe, Simone C Tauber, Lars-Ove Brandenburg
Bacterial meningitis is - despite therapeutical progress during the last decades - still characterized by high mortality and severe permanent neurogical sequelae. The brain is protected from penetrating pathogens by both the blood-brain barrier and the innate immune system. Invading pathogens are recognized by so-called pattern recognition receptors including the Toll-like receptors (TLR) which are expressed by glial immune cells in the central nervous system. Among these, TLR2 is responsible for the detection of Gram-positive bacteria such as the meningitis-causing pathogen Streptococcus pneumoniae...
October 15, 2016: Journal of Neuroimmunology
Y Moolla, L Naidoo
An immunocompetent adult presenting with acellular pneumococcal meningitis is a rare occurrence and may pose a diagnostic challenge.
September 23, 2016: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
Grete Buchholz, Uwe Koedel, Hans-Walter Pfister, Stefan Kastenbauer, Matthias Klein
BACKGROUND: Acute bacterial meningitis is still a life threatening disease. METHODS: We performed a retrospective observational study on the clinical characteristics of consecutively admitted patients with acute pneumococcal meningitis in a single tertiary care center in central Europe (from 2003 until 2015). Data were compared with a previously published historical group of 87 patients treated for pneumococcal meningitis at the same hospital (from 1984 until 2002)...
October 2, 2016: Critical Care: the Official Journal of the Critical Care Forum
Meng Song, Li Li, Meng Li, Yonghong Cha, Xuming Deng, Jianfeng Wang
Streptococcus pneumoniae is an important human pathogenic bacterium that can cause various life-threatening infections. Pneumolysin (PLY), the pore-forming toxin that forms large pores in the cell membrane, is a key virulence factor secreted by S. pneumoniae that penetrates the physical defenses of the host and plays an important role in the pathogenesis of pneumococcal diseases, such as pneumonia, meningitis, bacteremia and otitis media. This study showed that apigenin, one of the bioflavonoids widely found in herbs, inhibits PLY-induced hemolysis by inhibiting the oligomerization of PLY and has no anti-S...
September 28, 2016: Fitoterapia
Erika Britz, Olga Perovic, Claire von Mollendorf, Anne von Gottberg, Samantha Iyaloo, Vanessa Quan, Verushka Chetty, Charlotte Sriruttan, Nazir A Ismail, Ananta Nanoo, Alfred Musekiwa, Carl Reddy, Karien Viljoen, Cheryl Cohen, Nelesh P Govender
INTRODUCTION: Meningitis is a major cause of mortality in southern Africa. We aimed to describe the aetiologies and frequencies of laboratory-confirmed fungal and bacterial meningitis among adults in a South African province with an 11% HIV prevalence, over 4 years. METHODS: We conducted a retrospective, observational study of secondary laboratory data, extracted on all cerebrospinal fluid (CSF) specimens submitted to public-sector laboratories in Gauteng province from 2009 through 2012...
2016: PloS One
Michal Chowers, Gili Regev-Yochay, Orna Mor, Ronit Cohen-Poradosu, Klaris Riesenberg, Oren Zimhony, Daniel Chemtob, Michal Stein, Ron Dagan, Itzchak Levy
STUDY AIM: to assess the incidence, risk factors and outcome of invasive pneumococcal disease (IPD) among the Israeli HIV population. A matched case-control study nested in a nationwide, prospective, population-based, cohort of adult IPD was performed. In addition, the HIV-IPD patients were compared to the general adult HIV population in Israel. STUDY PERIOD: from the introduction of PCV into the national immunization program (NIP) in July 2009 to June 2014. Each HIV patient within the IPD cohort was matched to four non-HIV controls...
September 20, 2016: Human Vaccines & Immunotherapeutics
Maurice Gatera, Jeannine Uwimana, Emmanuel Manzi, Fidele Ngabo, Friday Nwaigwe, Bradford D Gessner, Jennifer C Moïsi
BACKGROUND: Ongoing surveillance is critical to assessing pneumococcal conjugate vaccine (PCV) impact over time. However, robust prospective studies are difficult to implement in resource-poor settings. We evaluated retrospective use of routinely collected data to estimate PCV impact in Rwanda. METHODS: We collected data from admission registers at five district hospitals on children age <5yearsadmitted for suspected meningitis and pneumonia during 2002-2012...
October 17, 2016: Vaccine
Anukul T Shenoy, Carlos J Orihuela
Streptococcus pneumoniae is an opportunistic pathogen globally associated with significant morbidity and mortality. It is capable of causing a wide range of diseases including sinusitis, conjunctivitis, otitis media, pneumonia, bacteraemia, sepsis, and meningitis. While its capsular polysaccharide is indispensible for invasive disease, and opsonising antibodies against the capsule are the basis for the current vaccines, a long history of biomedical research indicates that other components of this Gram-positive bacterium are also critical for virulence...
2016: Pneumonia
Song Gao, Lingbin Zeng, Xuemei Zhang, Yingying Wu, Jingjing Cui, Zhixin Song, Xiaoyu Sun, Hong Wang, Yibing Yin, Wenchun Xu
Streptococcus pneumoniae is one of the causative agent of pneumonia, meningitis, otitis media and sepsis. Vaccination is an effective strategy to combat S.pneumoniae invasion. We previously reported that SPY1, a novel attenuated vaccine candidate against S.pneumoniae, induces a protective immune response against pneumococcal infection in mice. However, underlying mechanisms have yet to be fully illustrated. To explore the mechanism of innate and adaptive immunities induced by SPY1. In this study, bone marrow-derived dendritic cells (DCs) of mice were infected with SPY1 and its parental wild-type strain D39, SPY1-infected DCs were co-cultured with homologous CD4(+)T cells or adoptive transfer to C57BL/6 mice...
September 5, 2016: Immunology Letters
Sudhakaran Prasanth, Velayudhan Cheruvallil Shaji, Chacko Lyla, Vasudevapanicker Jayalakshmi
Pneumococcal meningitis remains a life-threatening infection, with varied presentations. A 3 month-old-baby with pneumococcal meningitis presented with clusters of seizures evolving into refractory status epilepticus despite standard antibiotic and aggressive anticonvulsant therapy. Progressive illness despite antibiotic initially suggested possible antibiotic resistance and resulted in addition of another antibiotic. Nonresponse to standard treatment and previous history of abscess in the back of neck pointed to some underlying congenital immunodeficiency...
April 2016: Journal of Pediatric Neurosciences
Jailton Azevedo, Eder Silva Dos Anjos, Soraia Machado Cordeiro, Milena Soares Dos Santos, Eliane Cunegundes Escobar, Paulo Rocha Lobo, Maria da Gloria Carvalho, Mitermayer Galvão Reis, Joice Neves Reis, Leila Carvalho Campos
In 2010, the 10-valent pneumococcal conjugate vaccine (PCV10) was introduced to the Brazilian childhood vaccination program. Concerns have been raised that non-vaccine serotypes could increase in prevalence and reduce the benefits of vaccination; therefore, we examined the non-PCV10 isolates recovered from meningitis during pre (January, 2008-May, 2010) and post-vaccine (June, 2010-December, 2012) periods. Surveillance for pneumococcal meningitis was established at the Reference Hospital of Infectious Diseases in Salvador, Brazil...
September 2, 2016: Journal of Medical Microbiology
Marcela Potin, Alberto Fica, Jan Wilhem, Jaime Cerda, Lily Contreras, Carola Escobar, Gabriela Moreno, Alma Muñoz, Liliana Véliz
Inclusion of the 10-valent pneumococcal conjugated vaccine (PCV10) in the Chilean infant vaccination Program in 2011 was followed by a reduction of hospital admissions and pneumonia-related deaths in this age group. However, a progressive increase of serotype 19A pneumococcal isolates (not included in PCV10) has been observed. According to the analysis of pneumococcal strains performed by the national reference laboratory of the Institute of Public Health as part of a national surveillance on invasive pneumococcal infections, the relative proportion of serotype 19A isolates increased from <5% before 2010 to 12-23% in years 2014-2015...
June 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
Robert Cohen, Emmanuelle Varon, Stéphane Béchet, Stéphane Bonacorsi, Corinne Levy
BACKGROUND: Several underlying conditions increase the risk of pneumococcal meningitis (PM) in childhood. Patients with these diseases are initially considered as an important target of pneumococcal conjugate vaccines (PCVs). Limited data are available for PM in children with underlying conditions. To understand the benefits of PCV7 followed by PCV13 in this vulnerable population, we analyzed the data for a large cohort of pediatric patients with PM in France from 2001 to 2014. METHODS: We conducted hospital-based active surveillance with 227 pediatric wards working with 168 microbiology departments throughout France...
September 22, 2016: Vaccine
V Baldo, S Cocchio, T Gallo, P Furlan, E Clagnan, S Del Zotto, M Saia, C Bertoncello, A Buja, T Baldovin
INTRODUCTION: Pneumonia remains a common reason for hospitalizing infants and the elderly worldwide, and streptococcal infection is often responsible. The aim of this study was to assess the burden of pneumonia in a large general population. METHODS: All pneumonia-related hospitalizations from 2004 to 2013 in north-east Italy were identified from the hospital records with a first-listed diagnosis on discharge of bacterial pneumonia, or a first-listed diagnosis on discharge of meningitis, septicemia or empyema associated with a secondary diagnosis of bacterial pneumonia...
2016: Journal of Preventive Medicine and Hygiene
Lubaba Shahrin, Mohammod Jobayer Chisti, Sayeeda Huq, Md Munirul Islam, Shafiqul Alam Sarker, Mahmuda Begum, Shukla Saha, Tahmeed Ahmed
INTRODUCTION: Streptococcus pneumonia is the most common and intimidating cause of childhood meningitis. Its delayed diagnosis may be associated with hyponatremia and hypernatremia with fatal outcome. CASE PRESENTATION: A previously healthy nine-month-old Bangladeshi female infant was diagnosed with diarrhea, pneumonia, and convulsion due to hypernatremia. Pneumonia was confirmed by respiratory distress and radiological findings. Routine cerebrospinal fluid study detected pneumococcal meningitis...
2016: Journal of Infection in Developing Countries
Zheng Li, Qian-Qian Ma, Yan Yan, Feng-Dan Xu, Xiao-Ying Zhang, Wei-Qin Zhou, Zhi-Chun Feng
AIM: Edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one) is a free radical scavenger that has shown potent antioxidant, anti-inflammatory and neuroprotective effects in variety of disease models. In this study, we investigated whether edaravone produced neuroprotective actions in an infant mouse model of pneumococcal meningitis. METHODS: C57BL/6 mice were infected on postnatal d 11 by intracisternal injection of a certain inoculum of Streptococcus pneumoniae. The mice received intracisternal injection of 10 μL of saline containing edaravone (3 mg/kg) once a day for 7 d...
September 2016: Acta Pharmacologica Sinica
Enrique Chacon-Cruz, Cesar Adrian Martinez-Longoria, Eduardo Llausas-Magana, Antonio Luevanos-Velazquez, Jorge Alejandro Vazquez-Narvaez, Sandra Beltran, Ana Elena Limon-Rojas, Fernando Urtiz-Jeronimo, Jose Luis Castaneda-Narvaez, Francisco Otero-Mendoza, Fernando Aguilar-Del Real, Jesus Rodriguez-Chagoyan, Rosa Maria Rivas-Landeros, Maria Luisa Volker-Soberanes, Rosa Maria Hinojosa-Robles, Patricia Arzate-Barbosa, Laura Karina Aviles-Benitez, Fernando Ivan Elenes-Zamora, Chandra M Becka, Ricardo Ruttimann
OBJECTIVES: Meningococcal meningitis is reported as a rare condition in Mexico. There are no internationally published studies on bacterial causes of meningitis in the country based on active surveillance. This study focuses on finding the etiology of bacterial meningitis in children from nine Mexican Hospitals. METHODS: From January 2010 to February 2013, we conducted a three years of active surveillance for meningitis in nine hospitals throughout Mexico. Active surveillance started at the emergency department for every suspected case, and microbiological studies confirmed/ruled out all potentially bacterial pathogens...
January 2016: Therapeutic Advances in Vaccines
Kin Ki Jim, JooYeon Engelen-Lee, Astrid M van der Sar, Wilbert Bitter, Matthijs C Brouwer, Arie van der Ende, Jan-Willem Veening, Diederik van de Beek, Christina M J E Vandenbroucke-Grauls
BACKGROUND: Streptococcus pneumoniae is one of the most important causes of bacterial meningitis, an infection where unfavourable outcome is driven by bacterial and host-derived toxins. In this study, we developed and characterized a pneumococcal meningitis model in zebrafish embryos that allows for real-time investigation of early host-microbe interaction. METHODS: Zebrafish embryos were infected in the caudal vein or hindbrain ventricle with green fluorescent wild-type S...
2016: Journal of Neuroinflammation
Benjamin J Metcalf, Sopio Chochua, Robert E Gertz, Zhongya Li, Hollis Walker, Theresa Tran, Paulina A Hawkins, Anita Glennen, Ruth Lynfield, Yuan Li, Lesley McGee, Bernard Beall
OBJECTIVES: We assessed our whole genome sequence (WGS) pipeline for accurate prediction of current antimicrobial phenotypes. METHODS: For 2316 invasive pneumococcal isolates (IPD) recovered during 2015 we compared WGS pipeline data to broth dilution testing (BDT) for 18 antimicrobials. RESULTS: For 11 antimicrobials categorical discrepancies were assigned when WGS-predicted minimum inhibitory concentrations (MICs) and BDT MICs resulted in different predictions for susceptibility, intermediate-resistance or resistance, ranging from 0...
August 16, 2016: Clinical Microbiology and Infection
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