The introduction of a serogroup A meningococcal conjugate vaccine in the African meningitis belt has been a remarkable success. Meningitis due to the serogroup A meningococcus, previously responsible for most epidemics, has fallen by 99% in vaccinated countries. Success must, however, not distract from the continuing burden of meningitis in this region of Africa. The number of all meningitis epidemics at health district level has fallen by 60% following vaccination, but epidemics due to other meningococcal serogroups continue and may be increasing. The introduction of low cost multivalent conjugate vaccines must be given high public health priority.
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http://dx.doi.org/10.1080/21645515.2017.1412022 | DOI Listing |
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).
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.
Clin Exp Pediatr
January 2025
Department of Pediatrics, Hallym University Sacred Heart Hospital, Anyang, Korea.
Background: Patients with systemic lupus erythematosus (SLE) are susceptible to infectious diseases owing to various immunosuppressive treatments and disease characteristics. Meningococcal infections progress rapidly with a high incidence of severe complications and mortality; therefore, meningococcal vaccination is needed. However, there is limited evidence regarding the immunity and immunogenicity of patients with SLE.
View Article and Find Full Text PDFVaccines (Basel)
November 2024
Laboratory of Proteolytic Enzyme Chemistry, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia.
IgA1 protease is one of the virulence factors of , and other pathogens causing bacterial meningitis. The aim of this research is to create recombinant proteins based on fragments of the mature IgA1 protease A-P from serogroup B strain H44/76. These proteins are potential components of an antimeningococcal vaccine for protection against infections caused by pathogenic strains of and other bacteria producing serine-type IgA1 proteases.
View Article and Find Full Text PDFMicroorganisms
December 2024
Institut Pasteur, Invasive Bacterial Infections, Université Paris Cité, 75015 Paris, France.
Most cases of invasive meningococcal disease (IMD) in Europe are caused by isolates of the serogroups B, C, W, and Y. We aimed to explore cases caused by other unusual serogroups. We retrospectively screened IMD cases in the databases of the National Reference Center for Meningococci and in France between 2014 and 2023.
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