Neisseria meningitidis is a commensal bacterium of the human nasopharynx that occasionally provokes invasive disease. Carriage strains of N. meningitidis are heterogeneous, more frequent in nature and are transmitted among carriers. Disease is not a part of this transmission cycle and is caused by virulent strains. N. meningitidis is highly variable and variants that are modified in their virulence and/or transmissibility are continually generated. These events probably occur frequently, thus explaining not only the heterogeneous nature of meningococcal populations in carriers but probably also the evolutionary success of this human-restricted bacterium.
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Trends Microbiol
January 2025
Université Paris Cité, INSERM U1151, CNRS UMR8253, Institut Necker-Enfants Malades, Paris, France. Electronic address:
Erratum: Meningococcal Surveillance Australia: Reporting period 1 April to 30 June 2024.
Commun Dis Intell (2018)
January 2025
World Health Organisation Collaborating Centre for STI and AMR, Sydney and Neisseria Reference Laboratory, Department of Microbiology, NSW Health Pathology, The Prince of Wales Hospital, Randwick, 2031, NSW Australia.
Erratum to 2024;48. (doi: 10.33321/cdi.
View Article and Find Full Text PDFGenetic variability in strains isolated in a Japanese hospital.
IJID Reg
March 2025
Department of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Objectives: is a significant pathogen causing invasive meningococcal disease, posing clinical and public health concerns worldwide. This study aimed to investigate the genetic characteristics of clinical isolates at Okayama University Hospital in Japan.
Methods: Between 2018 and 2023, five clinical strains were isolated, of which three were subjected to the antimicrobial susceptibility testing and whole genetic analysis using MiSeq platform (Illumina, San Diego, CA, USA).
The Prevalence, Serogroup Distribution and Risk Factors of Meningococcal Carriage in Children, Adolescents and Young Adults in Turkey Meningo-Carr-TR Study PART 3: COVID-19 Pandemic Situation.
Pediatr Infect Dis J
November 2024
Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey.
Background: The prevalence of meningococcal carriage and serogroup distribution is crucial for assessing the epidemiology of invasive meningococcal disease, forecasting outbreaks and formulating potential immunization strategies. Following the meningococcal carriage studies conducted in Turkey in 2016 and 2018, we planned to re-evaluate meningococcal carriage in children, adolescents and young adults during the COVID-19 pandemic period.
Methods: In the MENINGO-CARR-3 study, we collected nasopharyngeal samples from 1585 participants 0-24 years of age, across 9 different centers in Turkey.
Adjuvant-dependent impacts on vaccine-induced humoral responses and protection in preclinical models of nasal and genital colonization by pathogenic Neisseria.
Vaccine
January 2025
Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Canada. Electronic address:
Neisseria gonorrhoeae, which causes the sexually transmitted infection gonorrhea and Neisseria meningitidis, a leading cause of bacterial meningitis and septicemia, are closely related human-restricted pathogens that inhabit distinct primary mucosal niches. While successful vaccines against invasive meningococcal disease have been available for decades, the rapid rise in antibiotic resistance has led to an urgent need to develop an effective gonococcal vaccine. Several surface antigens are shared among these two pathogens, making cross-species protection an exciting prospect.
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