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Draft Genome Sequence of a Mixed-Serogroup W/Y Invasive Neisseria meningitidis Strain. Microbiol Resour Announc 2023; 12:e0105622. [PMID: 36809023 PMCID: PMC10019197 DOI: 10.1128/mra.01056-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
We report the genome of a Neisseria meningitidis strain (GE-156) that was isolated in Switzerland from a patient diagnosed with bacteremia. The strain belongs to a rare mixed serogroup W/Y and sequence type 11847 (clonal complex 167), as revealed by both routine laboratory examination and genomic sequencing.
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2
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Meningococcal carriage in men who have sex with men presenting at a sexual health unit in Spain. Eur J Clin Microbiol Infect Dis 2023; 42:287-296. [PMID: 36692604 DOI: 10.1007/s10096-023-04550-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/15/2023] [Indexed: 01/25/2023]
Abstract
Neisseria meningitidis (Nm) is asymptomatically carried in the nasopharynx of 5-10% adults, although certain populations, such as men who have sex with men (MSM), exhibit a higher colonisation rate. Interest in Nm carriage has been renewed, owed to meningitis outbreaks within populations of MSM. The aim of this study was to characterise Nm isolates and risk factors for its carriage among MSM attending a sexual health unit. A retrospective cross-sectional study was undertaken between June 2018 and December 2021. We took anal, oropharyngeal, urethral, and blood samples as part of the sexually transmitted infection screening procedures routinely implemented. Nm isolates were subjected to antimicrobial susceptibility testing; the serogroup and genogroup were determined by multi-locus sequence typing. A total of 399 subjects were recruited, and the Nm oropharyngeal carriage rate was 29%, similar among both people living with HIV (PLWH) and uninfected individuals. Nm carriage was less common in vaccinated individuals, especially those who had received the tetravalent vaccine (2.6% vs. 10.6%, p = 0.008). The most frequent serogroups were B (40%) and non-groupable (45%). Most of the isolates were susceptible to ciprofloxacin (96%) and ceftriaxone (100%). However, we identified 21 strains (20%) belonging to hyperinvasive lineages (CC11, CC4821, CC32, CC41/44, CC213, and CC269), most of which belonged to serogroup B. Given that vaccination with MenACWY was associated with a low Nm carriage, we encourage routine vaccination of all MSM. Moreover, the administration of the meningitis B vaccine should also be assessed considering that several invasive lines included in serogroup B are circulating among MSM.
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Sereikaitė E, Plepytė R, Petrutienė A, Stravinskienė D, Kučinskaitė-Kodzė I, Gėgžna V, Ivaškevičienė I, Žvirblienė A, Plečkaitytė M. Molecular characterization of invasive Neisseria meningitidis isolates collected in Lithuania (2009-2019) and estimation of serogroup B meningococcal vaccine 4CMenB and MenB-Fhbp coverage. Front Cell Infect Microbiol 2023; 13:1136211. [PMID: 36875527 PMCID: PMC9975601 DOI: 10.3389/fcimb.2023.1136211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/06/2023] [Indexed: 02/17/2023] Open
Abstract
Neisseria meningitidis causes invasive meningococcal disease (IMD), which is associated with significant mortality and long-term consequences, especially among young children. The incidence of IMD in Lithuania was among the highest in European Union/European Economic Area countries during the past two decades; however, the characterization of meningococcal isolates by molecular typing methods has not yet been performed. In this study, we characterized invasive meningococcal isolates (n=294) recovered in Lithuania from 2009 to 2019 by multilocus sequence typing (MLST) and typing of antigens FetA and PorA. The more recent (2017-2019) serogroup B isolates (n=60) were genotyped by analyzing vaccine-related antigens to evaluate their coverage by four-component (4CMenB) and two-component (MenB-Fhbp) vaccines using the genetic Meningococcal Antigen Typing System (gMATS) and Meningococcal Deduced Vaccine Antigen Reactivity (MenDeVAR) Index methods, respectively. The vast majority (90.5%) of isolates belonged to serogroup B. MLST revealed a predominance of clonal complex 32 (74.02%). Serogroup B strain P1.19,15: F4-28: ST-34 (cc32) accounted for 64.1% of IMD isolates. The overall level of strain coverage by the 4MenB vaccine was 94.8% (CI 85.9-98.2%). Most serogroup B isolates (87.9%) were covered by a single vaccine antigen, most commonly Fhbp peptide variant 1 (84.5% of isolates). The Fhbp peptides included in the MenB-Fhbp vaccine were not detected among the analyzed invasive isolates; however, the identified predominant variant 1 was considered cross-reactive. In total, 88.1% (CI 77.5-94.1) of isolates were predicted to be covered by the MenB-Fhbp vaccine. In conclusion, both serogroup B vaccines demonstrate potential to protect against IMD in Lithuania.
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Affiliation(s)
- Emilija Sereikaitė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Rūta Plepytė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Aurelija Petrutienė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
- Department of Bacteriology, National Public Health Surveillance Laboratory, Vilnius, Lithuania
| | - Dovilė Stravinskienė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | | | - Vilmantas Gėgžna
- Institute of Biosciences, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Inga Ivaškevičienė
- Clinic of Children’s Diseases, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
- Pediatric Center, Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Aurelija Žvirblienė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Milda Plečkaitytė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
- *Correspondence: Milda Plečkaitytė,
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Shevtsov A, Aushakhmetova Z, Amirgazin A, Khegay O, Kamalova D, Sanakulova B, Abdaliyev A, Bayesheva D, Seidullayeva A, Ramankulov Y, Shustov A, Vergnaud G. Whole genome sequence analysis of Neisseria meningitidis strains circulating in Kazakhstan, 2017-2018. PLoS One 2022; 17:e0279536. [PMID: 36576937 PMCID: PMC9797059 DOI: 10.1371/journal.pone.0279536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 12/11/2022] [Indexed: 12/29/2022] Open
Abstract
Neisseria meningitidis (meningococcus) is a cosmopolitan bacterium that is often found in the upper respiratory tract of asymptomatic humans. However, N. meningitidis also causes meningeal inflammation and/or sepsis in humans with a periodic resurgence in incidence and high mortality rates. The pathogen is highly diverse genetically and antigenically, so that genotyping is considered important for vaccine matching to circulating strains. Annual incidence of meningococcal disease in Kazakhstan ranges between 0.2 and 2.5 cases per 100 thousand population. In total, 78 strains of N. meningitidis were isolated from clinical patients and contact persons during the years 2017-2018 in Kazakhstan. Of these, 41 strains including four from the patients and 37 from contacts, were sequenced using Illumina MiSeq. In silico typing was completed using the Neisseria pipeline 1.2 on the Galaxy Workflow Management System and PubMLST. Whole genome SNP (single nucleotide polymorphisms) trees were built using BioNumerics 8. Seven-gene multilocus sequence typing (MLST) identified ten sequence types (ST), two of which have not been previously described (ST-16025; ST-16027). ST-16025 was detected in two patients with invasive meningococcal disease in 2017 and 2018 in Akmola region and 16 contacts in 2017 in Turkistan region. This prevalent type ST-16025 demonstrates considerable intertypic diversity as it consists of three subcomplexes with a distance of more than 2000 SNPs. Invasive and carrier strains belong to different serogroups (MenB and MenC), PorA and FetA_VR. Two invasive strains were MenB, one MenC and one MenW (Hajj lineage). The strains from the contact persons were: MenC (n = 18), cnl (n = 9), MenY (n = 7), MenW (n = 1), MenB (n = 1) and one unidentifiable. Different numbers of alleles were present: 12, 11, 7, and 7 alleles for PorA, FetA, fHbp, and NHBA, respectively. This study is the first report of the genetic diversity of N. meningitidis strains in Kazakhstan. Despite limitations with the studied sample size, important conclusions can be drawn based on data produced. This study provides evidence for regulatory authorities with regard to changing routine diagnostic protocols to increase the collecting of samples for WGS.
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Affiliation(s)
| | | | | | - Olga Khegay
- National Centre of expertise CSEC MN RK, Astana, Kazakhstan
| | | | | | | | - Dinagul Bayesheva
- Medical University Astana, Astana, Kazakhstan
- Multidisciplinary City Children’s Hospital №3, Astana, Kazakhstan
| | - Aliya Seidullayeva
- Medical University Astana, Astana, Kazakhstan
- Multidisciplinary City Children’s Hospital №3, Astana, Kazakhstan
| | - Yerlan Ramankulov
- National Center for Biotechnology, Astana, Kazakhstan
- School of Science and Humanities Nazarbayev University, Astana, Kazakhstan
| | | | - Gilles Vergnaud
- CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, Gif-sur-Yvette, France
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Yan L, Tang C, Cai Y, Nong J, Zhang K, Zhu L, Wang P, Wu L, Zhao F, Hu S. Ultra-efficient multiple cross displacement amplification-lateral flow biosensor (MCDA-LFB) for serogroup identification of prevalent Neisseria meningitidis. Anal Biochem 2022; 654:114740. [PMID: 35623396 DOI: 10.1016/j.ab.2022.114740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/18/2022]
Abstract
Meningococcal disease caused by Neisseria meningitidis remains a major global public health concern. Serogroup A, B, C and W135 were the major disease-causing serogroups. It is vital to timely and efficiently detect and differentiate these four serogroups. Herein, we developed multiple cross displacement amplification-lateral flow biosensor (MCDA-LFB) assays targeting ctrA, sacB, siaD, siaD and synG gene respectively for detection and subtyping of four N. meningitidis serogroups. This assay utilizes LFB to detect FITC and biotin-labeled target amplicons produced by MCDA through double antibody sandwich principle, to allow sensitive and specific detection under a constant temperature. The detection limit was as low as 10 fg or 100 fg genomic DNA in pure cultures and 5.5 CFUs or 36 CFUs in spiked cerebrospinal fluid (CSF) specimens, which were overall 100 to 1000-fold more sensitive than conventional PCR. High specificity of these assays was also validated through type strains and clinical isolates, with no cross-reactions. MCDA-LFB testing procedure can be finished within 1 h. In conclusion, the N. meningitidis- and serogroup-MCDA-LFB assays established in this study are simple, rapid and efficient, providing valuable molecular methods for diagnosis and surveillance of meningococcal disease, especially in resource-limited regions and when specimen culture fails.
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Affiliation(s)
- Linlin Yan
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Chong Tang
- Department of Orthopaedic Surgery, Peking University Shougang Hospital, Beijing, 100144, China
| | - Yu Cai
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Jinqing Nong
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Ke Zhang
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Linlin Zhu
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Pengfei Wang
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Lei Wu
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China
| | - Fan Zhao
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China.
| | - Shoukui Hu
- Department of Clinical Laboratory, Peking University Shougang Hospital, Beijing, 100144, China.
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Zhang Y, Deng X, Jiang Y, Zhang J, Zhan L, Mei L, Lu H, Yao P, He H. The Epidemiology of Meningococcal Disease and Carriage, Genotypic Characteristics and Antibiotic Resistance of Neisseria meningitidis Isolates in Zhejiang Province, China, 2011–2021. Front Microbiol 2022; 12:801196. [PMID: 35140696 PMCID: PMC8819144 DOI: 10.3389/fmicb.2021.801196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/03/2021] [Indexed: 11/26/2022] Open
Abstract
Neisseria meningitidis (Nm) remains a worldwide leading cause of epidemic meningitis. During 2011–July 2021, 55 meningococcal disease (MD) cases were reported with a case fatality rate of 5.45% in Zhejiang Province, China. The median age was 7 years. The annual incidence was 0.0017–0.0183 per 100,000 population. The highest age-specific incidence was observed in the group younger than 1 year. Serogroup was identified in 30 laboratory-confirmed MD cases, and MenB was most predominant. MenB was mainly observed in two age groups: younger than 5 and older than 35 years. MenB incidence was significantly increasing from 0.0018 per 100,000 in 2013 to 0.0070 per 100,000 in 2019. During 2015–2020, 17 positive samples were detected from 2,827 throat swabs from healthy population, of which 70.59% was MenB. Twenty multilocus sequence typing sequence types (STs) containing eight newly assigned STs (ST15881–ST15888) were determined in all Nm isolates. Either in MD cases or in healthy population, MenB CC ST-4821 was the predominant ST. It was worth noting that two MenY CC ST-23 cases occurred in 2019 and 2021, respectively. MenY CC ST-23 MD cases increased gradually in China. Phylogeny results based on genome sequencing indicated that Chinese MenW CC ST-11 isolates were genetically linked and grouped together with Japanese isolates, separated from MenW CC ST-11 isolates from Saudi Arabia Hajj outbreak, Europe, South Africa, South America, North America, and Oceania. MenW CC ST-11 isolates from East Asia might have evolved locally. Antibiotic susceptibility tests revealed a relatively high resistance rate (22.86%) of Nm isolates to penicillin. This study provided valuable data for Chinese public health authorities to grasp the temporal epidemiological characteristics of MD and healthy carriage.
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Affiliation(s)
- Yunyi Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Xuan Deng
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yan Jiang
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Junyan Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Li Zhan
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Lingling Mei
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Hangjing Lu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Pingping Yao
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- *Correspondence: Pingping Yao,
| | - Hanqing He
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Hanqing He,
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Leo S, Lazarevic V, Girard M, Getaz-Jimenez Velasco GC, Gaïa N, Renzi G, Cherkaoui A, Hong E, Taha MK, Schrenzel J. Strain coverage of Bexsero vaccine assessed by whole-genome sequencing over a cohort of invasive meningococci of serogroups B and W isolated in Switzerland. Vaccine 2020; 38:5324-5331. [PMID: 32561121 DOI: 10.1016/j.vaccine.2020.05.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/27/2022]
Abstract
Invasive meningococcal disease (IMD), caused by Neisseria meningitidis (Nm) strains, is a life-threatening but vaccine-preventable condition. Bexsero is a four-component vaccine that offers broad protection against Nm of serogroup B (NmB), particularly common in Europe. In Switzerland, Bexsero has not yet been licensed and no information is available concerning the predicted vaccine coverage on isolates of circulating Nm. We performed genotyping of Bexsero antigen loci by whole-genome sequencing (WGS) on 104 NmB collected in Switzerland in the 2010-2015 period. We searched for antigen variants previously defined as predictors of strain coverage and estimated that 50% of IMD NmB strains were potentially covered by the vaccine. Clonal complexes (cc) 32, 41/44 and 269, considered the best covered lineages, were further sub-typed according to Bexsero Antigen Sequence Type (BAST) scheme. We also genotyped by WGS 40 Nm of serogroup W (NmW) collected in the country between 2010 and 2016. NmW cc22 isolates appeared to be covered by the vaccine, which was not the case for cc11 isolates, whose incidence has recently increased in Switzerland and all over Europe. Our work underlines the benefit of using WGS for surveillance of vaccine antigen variant distribution in local Nm population and taking proper measures to prevent the spread of NmB.
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Affiliation(s)
- Stefano Leo
- Genomic Research Laboratory, Division of Infectious Diseases, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Vladimir Lazarevic
- Genomic Research Laboratory, Division of Infectious Diseases, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Myriam Girard
- Genomic Research Laboratory, Division of Infectious Diseases, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Gisela C Getaz-Jimenez Velasco
- Swiss National Reference Center for Meningococci (www.meningo.ch), Bacteriology Laboratory, Geneva University Hospitals, Geneva, Switzerland
| | - Nadia Gaïa
- Genomic Research Laboratory, Division of Infectious Diseases, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Gesuele Renzi
- Swiss National Reference Center for Meningococci (www.meningo.ch), Bacteriology Laboratory, Geneva University Hospitals, Geneva, Switzerland
| | - Abdessalam Cherkaoui
- Swiss National Reference Center for Meningococci (www.meningo.ch), Bacteriology Laboratory, Geneva University Hospitals, Geneva, Switzerland
| | - Eva Hong
- Invasive Bacterial Infection and National Reference Centre for Meningococci, Institut Pasteur, Paris, France
| | - Muhamed-Kheir Taha
- Invasive Bacterial Infection and National Reference Centre for Meningococci, Institut Pasteur, Paris, France
| | - Jacques Schrenzel
- Genomic Research Laboratory, Division of Infectious Diseases, University Hospitals and University of Geneva, Geneva, Switzerland; Swiss National Reference Center for Meningococci (www.meningo.ch), Bacteriology Laboratory, Geneva University Hospitals, Geneva, Switzerland.
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8
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Li S, Liu C, Liu Y, Ma Q, Wang Y, Wang Y. Development of a multiple cross displacement amplification combined with nanoparticles-based biosensor assay to detect Neisseria meningitidis. Infect Drug Resist 2019; 12:2077-2087. [PMID: 31406466 PMCID: PMC6642637 DOI: 10.2147/idr.s210735] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 06/17/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Neisseria meningitidis is a leading pathogen of meningococcal disease in humans worldwide. Multiple cross displacement mplification (MCDA) combined with nanoparticles-based lateral flow biosensor (MCDA-LFB) has been reported for the rapid detection of several bacterial pathogens in recent years. Here, therefore we developed an MCDA-LFB assay for the rapid detection of N. meningitis. METHODS A set of 10 primers specifically to recognize 10 different regions of the ctrA gene of N. meningitidis were designed. MCDA was developed and combined with a LFB to detect the ctrA gene of N. meningitidis. The reaction time and temperature condition for the MCDA-LFB were optimized and then the MCDA-LFB was applied to detect the DNA from clinical samples. RESULTS MCDA-LFB assay was successfully established for the detection of N. meningitidis based on the ctrA gene. The MCDA assay was optimized at 64°C for only 35 mins and the products of amplification were directly sensed by LFB. The whole operation, including DNA template preparation (~20 mins), MCDA reaction (35 mins) and results interpretation (~2 mins) could be finished in no more than 60 mins. The detection limit was as low as 10 fg/reaction (around 3 CFUs/reaction) of pure N. meningitidis DNA, with no cross-reaction with other bacterial DNA. CONCLUSION The MCDA-LFB techniques developed in the present study are an effective tool for the rapid detection of N. meningitidis, especially in resource-poor countries in meningococcal disease epidemic period.
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Affiliation(s)
- Shijun Li
- Laboratory of Bacterial Infectious Disease of Experimental Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, Guizhou, 550004, People’s Republic of China
| | - Chunting Liu
- Laboratory of Bacterial Infectious Disease of Experimental Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, Guizhou, 550004, People’s Republic of China
| | - Ying Liu
- Laboratory of Bacterial Infectious Disease of Experimental Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, Guizhou, 550004, People’s Republic of China
| | - Qing Ma
- Laboratory of Bacterial Infectious Disease of Experimental Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, Guizhou, 550004, People’s Republic of China
| | - Yue Wang
- Laboratory of Bacterial Infectious Disease of Experimental Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, Guizhou, 550004, People’s Republic of China
| | - Yi Wang
- Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, 10045, People’s Republic of China
- Ministry of Education, National Key Discipline of Pediatrics (Capital Medial University), Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health
, Beijing, 10045, People’s Republic of China
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Frank T, Hong E, Mbecko JR, Lombart JP, Taha MK, Rubbo PA. Emergence of Neisseria meningitidis Serogroup W, Central African Republic, 2015-2016. Emerg Infect Dis 2019; 24:2080-2083. [PMID: 30334720 PMCID: PMC6199983 DOI: 10.3201/eid2411.170817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
We analyzed data from the 2015 and 2016 meningitis epidemic seasons in Central African Republic as part of the national disease surveillance. Of 80 tested specimens, 66 belonged to meningococcal serogroup W. Further analysis found that 97.7% of 44 isolates belonged to the hyperinvasive clonal complex sequence type 11.
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Seki M, Kilgore PE, Kim EJ, Ohnishi M, Hayakawa S, Kim DW. Loop-Mediated Isothermal Amplification Methods for Diagnosis of Bacterial Meningitis. Front Pediatr 2018; 6:57. [PMID: 29594087 PMCID: PMC5857938 DOI: 10.3389/fped.2018.00057] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 02/27/2018] [Indexed: 11/20/2022] Open
Abstract
The rapid, accurate, and efficient identification of an infectious disease is critical to ensure timely clinical treatment and prevention in public health settings. In 2015, meningitis caused by Streptococcus pneumoniae, Haemophilus influenzae, and Neisseria meningitidis was responsible for 379,200 (range: 322,700-444,700) deaths. Clinical features alone cannot determine whether bacterial meningitis is present; an analysis of cerebrospinal fluid (CSF) is essential. Loop-mediated isothermal amplification (LAMP) is a nucleic acid amplification method offering an alternative to polymerase chain reaction (PCR). LAMP-based assays for detection of three leading bacteria in CSF for diagnosis of meningitis have been established. The typing assays using LAMP for detection of meningococcal serogroups A, B, C, W, X, and Y as well as H. influenzae serotypes a, b, c, d, e, and f were launched. In comparative analysis of the meningitis pathogen assays, LAMP assays did not yield false negative results, and the detection rate of LAMP assays was superior compared with PCR or conventional culture methods. LAMP assays provide accurate and rapid test results to detect major bacterial meningitis pathogens. Accumulating evidence suggests that LAMP assays have the potential to provide urgently needed diagnostics for bacterial meningitis in resource-limited settings of both developed and developing countries.
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Affiliation(s)
- Mitsuko Seki
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Paul E Kilgore
- Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, United States
| | - Eun Jin Kim
- Department of Pharmacy, College of Pharmacy, Hanyang University, Ansan, South Korea.,Institute of Pharmacological Research, Hanyang University, Ansan, South Korea
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoshi Hayakawa
- Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Dong Wook Kim
- Department of Pharmacy, College of Pharmacy, Hanyang University, Ansan, South Korea.,Institute of Pharmacological Research, Hanyang University, Ansan, South Korea
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11
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Memish ZA, Al-Tawfiq JA, Almasri M, Azhar EI, Yasir M, Al-Saeed MS, Ben Helaby H, Borrow R, Turkistani A, Assiri A. Neisseria meningitidis nasopharyngeal carriage during the Hajj: A cohort study evaluating the need for ciprofloxacin prophylaxis. Vaccine 2017; 35:2473-2478. [PMID: 28343777 DOI: 10.1016/j.vaccine.2017.03.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/04/2017] [Accepted: 03/06/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND The annual Muslim pilgrimage has the potential of increase risk for acquisition of Neisseria meningitidis. Here, we evaluate the Hajj impact on the prevalence of N. meningitidis carriage in a paired and non-paired cohort of pilgrims. Secondary objectives were to calculate the compliance with recommended vaccination. METHODS This is a prospective paired (arriving and departing), non-paired arriving and non-paired departing cohort study with the collection of nasopharyngeal samples at the start and the end of the Hajj. RESULTS The study included unpaired arriving pilgrims at King Abdul Aziz International Airport (N=1055), unpaired departing cohort (N=373), and a paired cohort (N=628) who were tested on arrival and departure. Meningococcal vaccination was received by all pilgrims, 98.2% received quadrivalent polysaccharide vaccine (ACWY), and 1.8% received meningococcal quadrivalent conjugate vaccine (MCV4). Only 1.61% and 23.03% received pneumococcal and influenza vaccines, respectively. Of the 1055 arriving unpaired pilgrim, 36 (3.4%) tested positive for nasopharyngeal carriage of N. meningitidis, and 24 (66.7%) of these were serogroup B, the remainder were non-groupable. Haemophilus influenza was detected among 45 (4.3%), and 11 (1%) carriers were positive for both N. meningitidis and H. influenzae. Out of 373 in the unpaired departing cohort, 6 (1.61%) tested positive for N. meningitidis, and 34 (9.1%) were positive for H. influenzae. Of the 628 paired cohort pilgrims, 36 (5.7%) pilgrims were positive for N. meningitidis at arrival and 16 (2.5%) pilgrims were positive after the hajj. CONCLUSION This the largest study of the epidemiology of N. meningitidis among pilgrims. The study showed a significant difference in the carriage between pilgrims from high endemicity and other pilgrims with a predominance of serogroup B. The continued use of ciprofloxacin as prophylactic antibiotics should be reconsidered as well as the consideration to add serogroup B as a required vaccination.
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Affiliation(s)
- Ziad A Memish
- Ministry of Health, Riyadh, Saudi Arabia; Alfaisal University, College of Medicine, Riyadh, Saudi Arabia; Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, USA.
| | - Jaffar A Al-Tawfiq
- Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia; Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - Esam I Azhar
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Muhammad Yasir
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Muneera S Al-Saeed
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Huda Ben Helaby
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ray Borrow
- Meningococcal Reference Unit, Public Health England, Manchester Royal Infirmary, Manchester, UK
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Lee D, Kim EJ, Kilgore PE, Takahashi H, Ohnishi M, Tomono J, Miyamoto S, Omagari D, Kim DW, Seki M. A Novel Loop-Mediated Isothermal Amplification Assay for Serogroup Identification of Neisseria meningitidis in Cerebrospinal Fluid. Front Microbiol 2016; 6:1548. [PMID: 26793181 PMCID: PMC4709847 DOI: 10.3389/fmicb.2015.01548] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 12/21/2015] [Indexed: 01/01/2023] Open
Abstract
We have developed a novel Neisseria meningitidis serogroup-specific loop-mediated isothermal amplification (LAMP) assay for six of the most common meningococcal serogroups (A, B, C, W, X, and Y). The assay was evaluated using a set of 31 meningococcal LAMP assay positive cerebrospinal fluid (CSF) specimens from 1574 children with suspected meningitis identified in prospective surveillance between 1998 and 2002 in Vietnam, China, and Korea. Primer specificity was validated using 15 N. meningitidis strains (including serogroups A, B, C, E, W, X, Y, and Z) and 19 non-N. meningitidis species. The N. meningitidis serogroup LAMP detected down to ten copies and 100 colony-forming units per reaction. Twenty-nine CSF had N. meningitidis serogroup identified by LAMP compared with two CSF in which N. meningitidis serogroup was identified by culture and multi-locus sequence typing. This is the first report of a serogroup-specific identification assay for N. meningitidis using the LAMP method. Our results suggest that this assay will be a rapid, sensitive, and uniquely serogroup-specific assay with potential for application in clinical laboratories and public health surveillance systems.
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Affiliation(s)
- DoKyung Lee
- Department of Pharmacy, College of Pharmacy, Hanyang UniversityAnsan, South Korea; Institute of Pharmacological Research, Hanyang UniversityAnsan, South Korea
| | - Eun Jin Kim
- Department of Pharmacy, College of Pharmacy, Hanyang UniversityAnsan, South Korea; Institute of Pharmacological Research, Hanyang UniversityAnsan, South Korea
| | - Paul E Kilgore
- Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy & Health Sciences, Wayne State University Detroit, MI, USA
| | - Hideyuki Takahashi
- Department of Bacteriology I, National Institute of Infectious Diseases Tokyo, Japan
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases Tokyo, Japan
| | | | | | - Daisuke Omagari
- Nihon University School of DentistryTokyo, Japan; Dental Research Center, Nihon University School of DentistryTokyo, Japan
| | - Dong Wook Kim
- Department of Pharmacy, College of Pharmacy, Hanyang UniversityAnsan, South Korea; Institute of Pharmacological Research, Hanyang UniversityAnsan, South Korea
| | - Mitsuko Seki
- Nihon University School of DentistryTokyo, Japan; Dental Research Center, Nihon University School of DentistryTokyo, Japan
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Rojas E, Hoyos J, Oldfield NJ, Lee P, Flint M, Jones CH, Ala’Aldeen DAA, Jansen KU, Anderson AS. Optimization of Molecular Approaches to Genogroup Neisseria meningitidis Carriage Isolates and Implications for Monitoring the Impact of New Serogroup B Vaccines. PLoS One 2015; 10:e0132140. [PMID: 26147212 PMCID: PMC4493136 DOI: 10.1371/journal.pone.0132140] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 06/10/2015] [Indexed: 01/14/2023] Open
Abstract
The reservoir for Neisseria meningitidis (Nm) is the human oropharynx. Implementation of Nm serogroup C (NmC) glycoconjugate vaccines directly reduced NmC carriage. Prophylactic vaccines are now available to prevent disease caused by the five major Nm disease causing serogroups (ABCWY). Nm serogroup B (NmB) vaccines are composed of antigens that are conserved across Nm serogroups and therefore have the potential to impact all Nm carriage. To assess the effect of these vaccines on carriage, standardized approaches to identify and group Nm are required. Real-time PCR (rt-PCR) capsule grouping assays that were internally controlled to confirm Nm species were developed for eight serogroups associated with carriage (A, B, C, E, W, X, Y and Z). The grouping scheme was validated using diverse bacterial species associated with carriage and then used to evaluate a collection of diverse Nm carriage isolates (n=234). A scheme that also included porA and ctrA probes was able to speciate the isolates, while ctrA also provided insights on the integrity of the polysaccharide loci. Isolates were typed for the Nm vaccine antigen factor H binding protein (fHbp), and were found to represent the known diversity of this antigen. The porA rt-PCR yielded positive results with all 234 of the Nm carriage isolates. Genogrouping assays classified 76.5% (179/234) of these isolates to a group, categorized 53 as nongenogroupable (NGG) and two as mixed results. Thirty seven NGG isolates evidenced a disrupted capsular polysaccharide operon judged by a ctrA negative result. Only 28.6% (67/234) of the isolates were serogrouped by slide agglutination (SASG), highlighting the reduced capability of carriage strains to express capsular polysaccharide. These rt-PCR assays provide a comprehensive means to identify and genogroup N. meningitidis in carriage studies used to guide vaccination strategies and to assess the impact of novel fHbp containing vaccines on meningococcal carriage.
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Affiliation(s)
- Eduardo Rojas
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
| | - Johanna Hoyos
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
| | - Neil J. Oldfield
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Philip Lee
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
| | - Mike Flint
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
| | - C. Hal Jones
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
| | | | - Kathrin U. Jansen
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
| | - Annaliesa S. Anderson
- Vaccine Research and Development, Pfizer Inc, Pearl River, New York, United States of America
- * E-mail:
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14
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Kim SA, Kim DW, Dong BQ, Kim JS, Anh DD, Kilgore PE. An expanded age range for meningococcal meningitis: molecular diagnostic evidence from population-based surveillance in Asia. BMC Infect Dis 2012; 12:310. [PMID: 23164061 PMCID: PMC3519641 DOI: 10.1186/1471-2334-12-310] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 11/05/2012] [Indexed: 12/27/2022] Open
Abstract
Background To understand epidemiologic patterns of meningococcal disease in Asia, we performed a retrospective molecular analysis of cerebrospinal fluid (CSF) specimens collected in prospective surveillance among children aged < 5 years of age in China, South Korea, and Vietnam. Methods A total of 295 isolates and 2,302 CSFs were tested by a meningococcal species- and serogroup-specific polymerase chain reaction (PCR) assay targeting the Neisseria meningitidis (Nm) ctrA gene. Multi-locus sequence typing (MLST) was performed in Nm gene amplification analysis and incidence rates for meningococcal meningitis were estimated. Results Among 295 isolates tested, 10 specimens from Vietnam were confirmed as serogroup B and all were Sequence Type (ST) 1576 by MLST. Among the 2,032 CSF specimen tested, 284 (14%) were confirmed by PCR (ctrA gene), including 67 (23.6%) from China, 92 (32.4%) from Korea, and 125 (44.0%) from Vietnam. Neonates and infants aged < 6 months of age accounted for more than 50% of Nm-PCR positive CSF. Two CSF specimens from Vietnam were identified as serogroup B using MLST. In addition, 44 specimens underwent sequencing to confirm meningococcal serogroup; of these, 21 (48%) were serogroup C, 12 (27%) were serogroup X, 9 (20%) were serogroup Y and 2 (5%) were serogroup B. The incidence rates of meningococcal meningitis among children < 5 years of age was highest in Vietnam (7.4/100,000 [95% CI, 3.6—15.3] followed by Korea (6.8/100,000 [95% CI, 3.5-13.5] and China (2.1/100,000) [95% CI, 0.7-6.2]). Conclusions These results suggest that there is a previously undetected, yet substantial burden of meningococcal meningitis among infants and young children. Standardized, sensitive and specific molecular diagnostic assays with Nm serogrouping capacity are needed throughout Asia to understand the true burden of N. meningitidis disease.
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Affiliation(s)
- Soon Ae Kim
- Translational Research Division, International Vaccine Institute, SNU Research Park, San 4-8 Nakseongdae-Dong, Kwanak Gu, Seoul 151-919, South Korea.
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15
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Patnaik S, Dash SK, Sethi D, Kumar A, Gupta KC, Kumar P. Engineered polymer-supported synthesis of 3'-carboxyalkyl-modified oligonucleotides and their applications in the construction of biochips for diagnosis of the diseases. Bioconjug Chem 2012; 23:664-70. [PMID: 22369664 DOI: 10.1021/bc200610u] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An engineered polymer support 5 has been prepared for the solid-phase assembly of 3'-carboxyalkyl-modified oligonucleotides using commonly available reagents. A two-step deprotection procedure resulted in the quantitative cleavage of oligonucleotides from the support and removal of the protecting groups from phosphodiesters and exocyclic amino groups of the nucleic bases. The fully deprotected oligomers, obtained in high yield, were desalted and analyzed on RP-HPLC. After characterization by MALDI-TOF, these carboxyalkylated oligonucleotides were immobilized onto the epoxy-functionalized glass microslides to prepare biochips. The performance of these biochips was evaluated under different sets of conditions and then successfully validated by the detection of base mismatches and human infectious disease, bacterial meningitis, caused by N. meningitidis.
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Affiliation(s)
- Satyakam Patnaik
- CSIR-Institute of Genomics and Integrative Biology, Delhi University Campus, Mall Road, Delhi 110 007, India
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