Related Experiment Video
Updated: Jul 10, 2026

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
Published on: November 5, 2019
[Meningitis and encephalitis in Poland in 2005]
Paweł Stefanoff1, Magdalena Rosińska
1Zakład Epidemiologii Państwowego Zakładu Higieny ul. Chocimska 24, 00-791 Warszawa. pstefanoff@pzh.gov.pl
Abstract:
In Poland, 2 806 cases of neuroinfections were reported in 2005, of which 998 had bacterial aetiology, 1469 viral, and 339 cases had other or unknown origin. Incidence of bacterial neuroin-fections increased in 2003-2005, following a decreasing trend observed during the past decade. Etiological factor was determined in 486 (49%) cases of bacterial neuroinfections. Among them Neisseria meningitidis was found in 135 cases, Haemophilus influenzae in 59 cases and Streptococ-cus pneumoniae in 111 cases. Unlike previously in 2005 serogroup B was no longer the predominant type of N. meningitidis cultured from patients. Both types B and C constituted similar proportions of all strains serotyped in 2005. Viral neuroinfections incidence in 2005 remained on the same level as in 2004. Etiological factor of central nervous system aseptic infections were established only in minor proportion of cases--3% of meningitis and 20% of encephalitis. Among confirmed cases, there were 177 cases of tick-borne encephalitis and 13 cases of herpetic encephalitis. Tick borne encephalitis incidence decreased in 2005 (0.46), compared to 2003-2004. Most of the cases were reported from endemic areas of northeastern part of the country.
Insights
In 2005, Poland saw a rise in bacterial neuroinfections, with Neisseria meningitidis, Streptococcus pneumoniae, and Haemophilus influenzae as key causes. Viral neuroinfections remained stable, while tick-borne encephalitis incidence declined.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Context:
- Neuroinfections pose a significant public health challenge in Poland.
- Monitoring etiological factors is crucial for effective disease control.
- Trends in bacterial and viral neuroinfections require ongoing surveillance.
Purpose:
- To analyze the incidence and etiological factors of neuroinfections in Poland in 2005.
- To identify trends in bacterial and viral neuroinfections.
- To assess changes in the serogroup distribution of Neisseria meningitidis.
Summary:
- In 2005, Poland reported 2,806 neuroinfection cases: 998 bacterial, 1469 viral, and 339 other/unknown.
- Bacterial neuroinfections increased from 2003-2005, with Neisseria meningitidis (135 cases), Streptococcus pneumoniae (111), and Haemophilus influenzae (59) identified.
- Serogroup B was no longer the predominant Neisseria meningitidis type; types B and C were similar. Viral neuroinfections remained stable. Tick-borne encephalitis incidence decreased, particularly in northeastern Poland.
Impact:
- Provides crucial data for public health strategies targeting neuroinfections in Poland.
- Highlights shifts in bacterial pathogen prevalence, informing vaccination and treatment protocols.
- Identifies decreasing trends in tick-borne encephalitis, aiding regional public health interventions.
Related Concept Videos
Encephalitis l: Introduction
Bacterial Meningitis I: Introduction
Poliomyelitis
Bacterial Meningitis
Encephalitis ll: Pathophysiology
Viral Meningitis
