4,560 results match your criteria Meningitis Haemophilus

The epidemiology of meningococcal meningitis: multicenter, hospital-based surveillance of meningococcal meningitis in Iraq.

IJID Reg 2021 Dec 28;1:100-106. Epub 2021 Oct 28.

Ministry of Health, Baghdad, Iraq.

Objectives: Outbreaks of have reached alarming levels due to the pathogen's ability to cause severe complications, presenting as meningitis or septicemia. Our study reports the results of the first wide-scale surveillance of meningococcal meningitis in Iraq.

Methods: The study included all consecutive cases of clinically suspected meningitis between June 2018 and May 2020 at 18 major hospitals around Iraq ( = 2314). Read More

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December 2021

Relationship between T-cell-dependent and T-cell-independent vaccines after neurotrauma; is the B-cell response preserved?

Hum Vaccin Immunother 2022 Jun 15:2088971. Epub 2022 Jun 15.

Department of Medical Sciences, Section of Infectious Diseases, Uppsala University, Uppsala, Sweden.

Background: After trauma and central nervous system (CNS) injury, trauma-induced immune deficiency syndrome (TIDS) and CNS injury-induced immune deficiency syndrome (CIDS) may negatively affect responses to T-cell-dependent vaccines, such as pneumococcal conjugate vaccine (PCV) recommended after basilar fracture. This study (NCT02806284) aimed to investigate whether there after neurotrauma is a correlation between T-cell-dependent and independent vaccine responses and, thus, if B-cell activity is similarly depressed and whether the T-cell-dependent response is possible to predict.

Methods: Adult patients with basilar fracture (n = 33) and those undergoing pituitary gland surgery (n = 23) were within 10 days vaccinated with a T-cell-dependent vaccine against Haemophilus influenzae type b (Hib) and a T-cell-independent pneumococcal polysaccharide vaccine (PPSV). Read More

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A cost-effectiveness analysis of PHiD-CV compared to PCV13 in a national immunization program setting in Tunisia.

Hum Vaccin Immunother 2022 Jun 15:2079305. Epub 2022 Jun 15.

GSK, Buenos Aires, Argentina.

Background: In response to the substantial clinical and economic burden of diseases caused by and non-typeable (NTHi) in Tunisia, the 10-valent pneumococcal non-typeable protein D conjugate vaccine (PHiD-CV) was recently introduced into the national immunization program. However, there has yet to be a full-scale health economic analysis comparing currently available pneumococcal conjugate vaccines (PCVs) in Tunisia.

Methods: A Markov model that simulated the disease processes of invasive pneumococcal disease (IPD), pneumonia, and acute otitis media (AOM) over a newborn cohort lifetime was used to evaluate the cost-effectiveness/utility of PHiD-CV and the 13-valent pneumococcal conjugate vaccine (PCV13) from payer's perspective, using 3% discounting. Read More

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Characterization of a universal neutralizing monoclonal antibody against Glaesserella parasuis CdtB.

Vet Microbiol 2022 Jul 27;270:109446. Epub 2022 Apr 27.

State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China; Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, Hubei 430070, China; International Research Center for Animal Disease, Ministry of Science and Technology of the People's Republic of China, Wuhan, Hubei 430070, China. Electronic address:

Glaesserella parasuis is the etiological agent of Glässer's disease. Although present as a symbiotic bacterium in the respiratory tract of healthy pigs, G. parasuis invades piglets under stress conditions and causes severe systemic infection characterized by fibrinous polyserositis, polyarthritis, and meningitis, which caused high mortality in weaned and nursery herds. Read More

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Ventriculitis Presenting as a Complication of Haemophilus Influenzae Mastoiditis and Meningitis.

Cureus 2022 Apr 25;14(4):e24480. Epub 2022 Apr 25.

Hospital Medicine, University of Florida Health, Jacksonville, USA.

Ventriculitis is a rare intracranial disease with potentially life-threatening consequences. Here, we present a case of acute mastoiditis that progressed to meningitis evolving to ventriculitis. This case was complicated by hydrocephalus that subsequently required the placement of a ventriculoperitoneal shunt. Read More

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Pathogen- and Type-Specific Changes in Invasive Bacterial Disease Epidemiology during the First Year of the COVID-19 Pandemic in The Netherlands.

Microorganisms 2022 May 5;10(5). Epub 2022 May 5.

Department of Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands.

COVID-19 control measures have resulted in a decline in invasive bacterial disease caused by (IMD), (IPD), and (Hi-D). These species comprise different serogroups and serotypes that impact transmissibility and virulence. We evaluated type- and pathogen-specific changes in invasive bacterial disease epidemiology in the Netherlands during the first year of the SARS-CoV-2 pandemic. Read More

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Synthetic Glycans to Improve Current Glycoconjugate Vaccines and Fight Antimicrobial Resistance.

Chem Rev 2022 May 24. Epub 2022 May 24.

GSK, R&D, Via Fiorentina 1, 53100 Siena, Italy.

Antimicrobial resistance (AMR) is emerging as the next potential pandemic. Different microorganisms, including the bacteria , , , , , , , non-typhoidal , and , and the fungus , have been identified by the WHO and CDC as urgent or serious AMR threats. Others, such as group A and B , are classified as concerning threats. Read More

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Antimicrobial resistance among Haemophilus influenzae isolates responsible for lower respiratory tract infections in Poland, 2005-2019.

Eur J Clin Microbiol Infect Dis 2022 Jun 18;41(6):961-969. Epub 2022 May 18.

Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Chełmska 30/34, 00-725, Warsaw, Poland.

Haemophilus influenzae is a human-specific pathogen responsible for respiratory tract infections, meningitis, and sepsis. The study aimed to characterize antibiotic resistance in H. influenzae strains isolated from patients with lower respiratory tract infections over 15 years in Poland. Read More

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Etiology of meningitis among adults in three quaternary hospitals in Mozambique, 2016-2017: The role of HIV.

PLoS One 2022 11;17(5):e0267949. Epub 2022 May 11.

Instituto Nacional de Saúde, Ministério da Saúde, Maputo, Mozambique.

Background: Meningitis remains an important cause of morbi-mortality in adults in sub-Saharan Africa. Data on the etiological investigation of meningitis in adults in Mozambique is limited and most studies were conducted in southern Mozambique. Identification of the etiology of meningitis in adults are crucial to guide prevention and treatments strategies. Read More

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Detection of Haemophilus influenzae by loop-mediated isothermal amplification coupled with nanoparticle-based lateral flow biosensor assay.

BMC Microbiol 2022 05 5;22(1):123. Epub 2022 May 5.

Biomedical Informatics & Genomics Center, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China.

Background: Haemophilus influenzae was the most aggressive pathogen and formed a major cause of bacterial meningitis and pneumonia in young children and infants, which need medical emergency requiring immediate diagnosis and treatment. However, From isolation to identification of H. influenzae, the traditional diagnose strategy was time-consuming and expensive. Read More

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One-Year Sequelae and Quality of Life in Adults with Meningococcal Meningitis: Lessons from the COMBAT Multicentre Prospective Study.

Adv Ther 2022 06 28;39(6):3031-3041. Epub 2022 Apr 28.

Institute Pasteur, 25-28 Rue du Dr Roux, 75015, Paris, France.

Introduction: COMBAT is a prospective, multicentre cohort study that enrolled consecutive adults with community-acquired bacterial meningitis (CABM) in 69 participating centres in France between February 2013 and July 2015 and followed them for 1 year.

Methods: Patients aged at least 18 years old, hospitalised with CABM were followed during their hospitalisation and then contacted by phone 12 months after enrolment. Here we present the prevalence of sequelae at 12 months in a subgroup of patients with meningococcal meningitis. Read More

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Epidemiology and burden of Haemophilus influenzae disease in Thai children before implementation of the routine immunisation programme: A National Health Data Analysis.

Trop Med Int Health 2022 Jun 9;27(6):546-552. Epub 2022 May 9.

Division of Infectious Disease, Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand.

Objectives: To conduct the first pre-Haemophilus influenzae (Hi) type b (Hib) immunisation programme-based epidemiological study using national health data.

Methods: We analysed National Health Security Office data, which cover 72% of the Thai population. The study population included children aged <18 years admitted for Hi disease from 2015 to 2019. Read More

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The Collateral Effect of COVID-19 on the Epidemiology of Airborne/Droplet-Transmitted Notifiable Infectious Diseases in Taiwan.

Antibiotics (Basel) 2022 Apr 3;11(4). Epub 2022 Apr 3.

Department of Intensive Care Medicine, Chi Mei Medical Center, Liouying, Tainan 73657, Taiwan.

This study was conducted to compare the number of cases of airborne/droplet-transmitted notifiable infectious disease (NID) between the pandemic period (defined as from January 2020 to December 2021) and the pre-pandemic period (defined as the period from January 2018 to December 2019). The annual case numbers of airborne/droplet-transmitted NIDs from 2018 to 2021 were collected for comparison. Fourteen airborne/droplet-transmitted NIDs including measles, rubella, pertussis, influenza with severe complications, invasive pneumococcal diseases (IPD), Q fever, mumps, meningococcal meningitis, varicella, legionellosis, invasive Haemophilus influenzae type b infection, hantavirus syndrome, TB, and multidrug-resistant TB (MDRTB), were included for the analysis. Read More

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Induction of Susceptibility to Disseminated Infection with IgA1 Protease-Producing Encapsulated Pathogens Streptococcus pneumoniae, Haemophilus influenzae Type b, and Neisseria meningitidis.

mBio 2022 Apr 14:e0055022. Epub 2022 Apr 14.

Department of Microbiology and Immunology, Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA.

Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae are the principal causes of bacterial meningitis. It is unexplained why only occasional individuals develop invasive infection, while the vast majority remain healthy and develop immunity when encountering these pathogens. A capsular polysaccharide and an IgA1 protease are common to these pathogens. Read More

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Delays in Diagnosis and Treatment of Bacterial Meningitis in NYC: Retrospective Cohort Analysis.

Neurohospitalist 2022 Apr 25;12(2):268-272. Epub 2021 Aug 25.

Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA.

Community-acquired bacterial meningitis (CABM) morbidity and mortality remains high in those infected. Rapid diagnosis and treatment is paramount to reducing mortality and improving outcome. This retrospective cohort study aims to assess the time from presentation to diagnosis and treatment of vaccine preventable CABM as well as identify possible factors associated with delays in diagnosis and antibiotic administration. Read More

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Unusual Gram-negative bacteria cause more severe bacterial meningitis than the three classical agents in children.

Acta Paediatr 2022 Jul 22;111(7):1404-1411. Epub 2022 Apr 22.

Pediatrics, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.

Aim: To compare the characteristics, mortality and sequelae at hospital discharge of childhood bacterial meningitis (BM) caused by the three "classical" agents Neisseria meningitidis, Haemophilus influenzae or Streptococcus pneumoniae versus BM due to other aetiology in Finland, Latin America and Angola.

Methods: This observational study is a secondary analysis of data from five prospective treatment trials on non-neonatal BM in Finland, Latin America and Angola in 1984-2017.

Results: Of the 1568 cases, 1459 (93%) were caused by the classics, 80 (5%) by other Gram-negative and 29 (2%) by other Gram-positive bacteria. Read More

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Outcome of acute bacterial meningitis among children in Kandahar, Afghanistan: A prospective observational cohort study.

PLoS One 2022 11;17(4):e0265487. Epub 2022 Apr 11.

Mahidol Oxford Tropical Medicine Clinical Research unit (MORU), Mahidol University, Bangkok, Thailand.

Background: Acute bacterial meningitis (ABM) is an important cause of morbidity and mortality in children but there are no published data on the treatment outcomes of ABM in Afghanistan.

Methods: We conducted a prospective observational cohort study over one year, February 2020 to January 2021 in a tertiary care hospital in Kandahar, Afghanistan. AMB was diagnosed clinically and on lumbar puncture findings. Read More

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Phylogenetic Structure and Comparative Genomics of Multi-National Invasive Serotype a Isolates.

Front Microbiol 2022 24;13:856884. Epub 2022 Mar 24.

Meningitis and Vaccine Preventable Diseases Branch, Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States.

Recent reports have indicated a rise of invasive disease caused by serotype a (Hia) in North America and some European countries. The whole-genome sequences for a total of 410 invasive Hia isolates were obtained from 12 countries spanning the years of 1998 to 2019 and underwent phylogenetic and comparative genomic analysis in order to characterize the major strains causing disease and the genetic variation present among factors contributing to virulence and antimicrobial resistance. Among 410 isolate sequences received, 408 passed our quality control and underwent genomic analysis. Read More

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Corrigendum: Molecular Serotype-Specific Identification of Non-type b by Loop-Mediated Isothermal Amplification.

Front Microbiol 2022 14;13:870651. Epub 2022 Mar 14.

Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.

[This corrects the article DOI: 10.3389/fmicb.2017. Read More

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Clinical use of multiplex-PCR for the diagnosis of acute bacterial meningitis.

J Family Med Prim Care 2022 Feb 16;11(2):593-598. Epub 2022 Feb 16.

Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.

Background And Objectives: Prompt and accurate diagnosis of acute bacterial meningitis (ABM) is critical for patient management. We designed and evaluated two sets of multiplex-PCR assays for the simultaneous detection of six major etiologies of ABM i.e. Read More

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February 2022

Bacterial meningitis: Aetiology, risk factors, disease trends and severe sequelae during 50 years in Sweden.

J Intern Med 2022 Mar 27. Epub 2022 Mar 27.

Department of Microbiology, Tumor and Cell biology (MTC), Biomedicum, Karolinska Institutet, Stockholm, Sweden.

Background: Bacterial meningitis (BM) is a rare but severe infection. Few population-based studies have characterised BM episodes and sequelae over long periods.

Methods: This was a population-based observational cohort study with national coverage, using data on aetiological pathogens, sex, premorbid conditions, steroid pretreatment, severe sequelae and birth, death and diagnosis dates collected from 10,339 patients with BM reported to the National Board of Health and Welfare in Sweden between 1964 and 2014. Read More

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National, regional, and provincial disease burden attributed to and type b in children in China: Modelled estimates for 2010-17.

Lancet Reg Health West Pac 2022 May 16;22:100430. Epub 2022 Mar 16.

China Center for Health Development Studies, Peking University, Beijing, China.

Background: Vaccination against (pneumococcus) and type b (Hib) is not included in China's national immunization programme. To inform China's immunization polices, we estimated annual national, regional, and provincial childhood mortality and morbidity attributable to pneumococcus and Hib in 2010-17.

Methods: We estimated proportions of pneumonia and meningitis deaths and cases attributable to pneumococcus and Hib using evidence from vaccine clinical trials and surveillance studies of bacterial meningitis and pathogen-specific case fatality ratios (CFR). Read More

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Direct Real-Time PCR for the Detection and Serotyping of Haemophilus influenzae without DNA Extraction.

J Clin Microbiol 2022 04 21;60(4):e0211121. Epub 2022 Mar 21.

Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Preventiongrid.416738.f, Atlanta, Georgia, USA.

To monitor the burden and changes in Haemophilus influenzae (Hi) disease, direct real-time PCR (drt-PCR) assays have been developed for Hi detection in monoplex form and its six serotypes in triplex form, directly from cerebrospinal fluid (CSF) specimens. These assays target the gene for the species detection (Hi-) and serotype-specific genes in region II of the capsule biosynthesis locus (Hi-abf and Hi-cde), identified through comparative analysis of Hi and non-Hi whole-genome sequences. The lower limit of detection (LLD) is 293 CFU/mL for the Hi- assay and ranged from 11 to 130 CFU/mL for the triplex serotyping assays. Read More

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Methylome and Transcriptome-Based Integration Analysis Identified Molecular Signatures Associated With Meningitis Induced by .

Front Immunol 2022 25;13:840399. Epub 2022 Feb 25.

Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China.

() can elicit serious inflammatory responses and cause meningitis in piglets. Previous epigenetic studies have indicated that alterations in host DNA methylation may modify the inflammatory response to bacterial infection. However, to date, genome-wide analysis of the DNA methylome during meningitis caused by infection is still lacking. Read More

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Equity in vaccination policies to overcome social deprivation as a risk factor for invasive meningococcal disease.

Expert Rev Vaccines 2022 05 29;21(5):659-674. Epub 2022 Mar 29.

Global Medical Affairs Neisseria, GSK, Rueil-Malmaison, France.

Introduction: Social deprivation is associated with poorer healthcare access. Vaccination is among the most effective public health interventions and achieving equity in vaccination access is vitally important. However, vaccines are often reimbursed by public funds only when recommended in national immunization programs (NIPs), which can increase inequity between high and low socioeconomic groups. Read More

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Estimating the global and regional burden of meningitis in children caused by type b: A systematic review and meta-analysis.

J Glob Health 2022 5;12:04014. Epub 2022 Mar 5.

Centre for Global Health, Edinburgh Medical School, Usher Institute, University of Edinburgh, Edinburgh, Scotland, UK.

Background: Type B (Hib) meningitis caused significant public health concern for children. Recent assessment in 2015 suggests vaccination has virtually eliminated invasive Hib diseases. However, many countries launched their programs after 2010, and few are yet to establish routine Hib immunisations. Read More

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Comparative pangenome analysis of capsulated Haemophilus influenzae serotype f highlights their high genomic stability.

Sci Rep 2022 02 24;12(1):3189. Epub 2022 Feb 24.

Microbiology Department, Hospital Universitari de Bellvitge, IDIBELL-UB, Feixa Llarga s/n, L'Hospitalet de Llobregat, 08907, Barcelona, Spain.

Haemophilus influenzae is an opportunistic pathogen adapted to the human respiratory tract. Non-typeable H. influenzae are highly heterogeneous, but few studies have analysed the genomic variability of capsulated strains. Read More

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February 2022

Steroid use in non-pneumococcal and non-Haemophilus bacterial meningitis - Authors' reply.

Lancet 2022 02;399(10326):718

Research Department of Infection, University College London, London, UK; Francis Crick Institute, London, UK.

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February 2022

Steroid use in non-pneumococcal and non-Haemophilus bacterial meningitis.

Lancet 2022 02;399(10326):717-718

Department of Microbiology, Black Country Pathology Services, The Royal Wolverhampton NHS Trust, Wolverhampton WV10 OQP, UK.

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February 2022

Does social deprivation correlate with meningococcal MenACWY, Hib/MenC and 4CMenB/Meningococcal Group B vaccine uptake in Northern Ireland?

Ulster Med J 2022 Jan 11;91(1):9-18. Epub 2022 Feb 11.

School of Medicine, Dentistry and Biomedical Science, The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, UK.

Background: Several meningococcal vaccines have been recently introduced into the infant and adolescent vaccination schedules in Northern Ireland to promote immunity to protecting against meningococcal septicaemia and meningococcal meningitis. Maintained vaccination uptake is vital in securing individual protection as well as herd immunity. Several social factors have been described in influencing vaccine uptake and therefore it was the aim of this study to examine possible correlations between meningococcal vaccine uptake rates and indicators of social deprivation in Northern Ireland. Read More

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January 2022