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Updated: Jun 22, 2026

Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model
Published on: July 1, 2018
Clinical and laboratory evidence for Neisseria meningitidis biofilms
R Brock Neil1, Michael A Apicella
1University of Iowa, Hygienic Laboratory, 102 Oakdale Campus, H101 OH, Iowa City, IA 52242-5002, USA.
Abstract:
Neisseria meningitidis is the etiologic agent of meningococcal meningitis. Carriage of the organism is approximately 10% while active disease occurs at a rate of 1:100,000. Recent publications demonstrate that N. meningitidis has the ability to form biofilms on glass, plastic or cultured human bronchial epithelial cells. Microcolony-like structures are also observed in histological sections from patients with active meningococcal disease. This review investigates the possible role of meningococcal biofilms in carriage and active disease, based on the laboratory and clinical aspects of the disease.
Insights
Neisseria meningitidis can form biofilms, which may play a role in both asymptomatic carriage and active meningococcal disease. This review explores laboratory and clinical evidence linking biofilms to disease states.
Area of Science:
- Microbiology
- Infectious Diseases
- Pathogenesis
Background:
- Neisseria meningitidis causes meningococcal meningitis.
- Carriage rates are around 10%, with active disease at 1:100,000.
- Biofilm formation by N. meningitidis has been recently demonstrated.
Purpose of the Study:
- To investigate the potential role of N. meningitidis biofilms in disease.
- To explore the link between biofilms, carriage, and active meningococcal meningitis.
Main Methods:
- Review of recent laboratory findings on N. meningitidis biofilm formation.
- Analysis of clinical observations, including microcolony structures in patient samples.
- Integration of in vitro and in vivo data.
Main Results:
- N. meningitidis exhibits biofilm-forming capabilities on various surfaces and cells.
- Biofilm-like structures are present in clinical cases of meningococcal disease.
- Evidence suggests a connection between biofilm formation and disease states.
Conclusions:
- Meningococcal biofilms may be significant in the pathogenesis of meningococcal meningitis.
- Biofilm formation could influence both the asymptomatic carriage and active disease phases.
- Further research into N. meningitidis biofilms is warranted.
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