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Updated: Jul 30, 2026

Capsular Serotyping of Streptococcus pneumoniae Using the Quellung Reaction
Published on: February 24, 2014
[The serosubtyping of serogroup B meningococci]
Abstract:
The results of the study of 116 Neisseria meningitidis strains, isolated from patients at different territories of Russia at the period of 1983-1992, by the method of the enzyme immunoassay are presented. 13.8 +/- 3.2% of the strains were found to have stereotype proteins and 59.5 +/- 4.5%, subtype proteins. In the population of circulating meningococcal strains no absolute prevalence of any single serotype or subtype was established. The comparison of the tendency in the course of morbidity rate and the state of the serosubtype composition of isolated group B N. meningitidis stains is indicative of the favorable situation with respect to meningococcal infection and the importance of further observation of the circulating strains.
Insights
This study analyzed Neisseria meningitidis strains in Russia from 1983-1992. Results show varied serotype and subtype prevalence, indicating a favorable outlook for meningococcal infection control.
Area of Science:
- Microbiology
- Epidemiology
- Immunology
Background:
- Neisseria meningitidis is a significant bacterial pathogen causing meningitis.
- Understanding the serotype and subtype distribution is crucial for disease surveillance and control.
Purpose of the Study:
- To characterize the serotype and subtype composition of Neisseria meningitidis strains circulating in Russia between 1983 and 1992.
- To assess the epidemiological situation of meningococcal infection based on strain characteristics.
Main Methods:
- Enzyme immunoassay (EIA) was employed to analyze 116 Neisseria meningitidis strains.
- Strains were isolated from patients across different regions of Russia during the specified period.
Main Results:
- Approximately 13.8% of strains possessed stereotype proteins and 59.5% possessed subtype proteins.
- No single serotype or subtype demonstrated absolute prevalence in the circulating meningococcal strain population.
- Analysis revealed a favorable epidemiological situation regarding meningococcal infection.
Conclusions:
- The serosubtype composition of circulating Neisseria meningitidis strains suggests a stable and favorable epidemiological status.
- Continued monitoring of circulating meningococcal strains is essential for effective public health strategies.
Related Concept Videos
Bacterial Meningitis
Viral Meningitis
Cryptococcal Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

