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[Meningitis and encephalitis in Poland in 2002]

Magdalena Rosińska1, Andrzej Zieliński

  • 1Zakład Epidemiologii Państwowego Zakładu Higieny ul. Chocimska 24, 00-791 Warszawa.

Przeglad Epidemiologiczny
|June 29, 2004
PubMed

Insights

In 2002, Poland saw declining bacterial meningitis and encephalitis rates, with viral infections stable. Neisseria meningitidis, Haemophilus influenzae, and Streptococcus pneumoniae were key bacterial causes, with rising Type C N. meningitidis strains observed.

Area of Science:

  • Neuroscience
  • Infectious Diseases
  • Epidemiology

Background:

  • Central nervous system infections, including bacterial meningitis and encephalitis, pose significant public health challenges.
  • Understanding the etiological agents and trends of these infections is crucial for effective prevention and treatment strategies.
  • Previous decades have shown varying incidence rates for bacterial and viral central nervous system infections in Poland.

Purpose of the Study:

  • To analyze the incidence and etiological factors of bacterial and viral meningitis and encephalitis in Poland in 2002.
  • To identify trends in bacterial central nervous system infections and the prevalence of specific etiological agents.
  • To report the occurrence of tick-borne encephalitis in Poland in 2002.

Main Methods:

  • Retrospective analysis of reported cases of meningitis and encephalitis in Poland for the year 2002.
  • Identification and serotyping of etiological agents in bacterial meningitis and encephalitis cases.
  • Data collection on tick-borne encephalitis cases, noting geographical distribution.

Main Results:

  • In 2002, Poland reported 861 bacterial meningitis/encephalitis cases, 307 viral encephalitis, 1022 viral meningitis, and 286 other/unknown etiology cases.
  • Bacterial central nervous system infection incidence declined over the past decade; viral infections remained stable after a mid-nineties outbreak.
  • Etiology was determined in 42% of bacterial cases: Neisseria meningitidis (90), Streptococcus pneumoniae (85), and Haemophilus influenzae (72). Type C N. meningitidis strains showed an increase (35%).
  • 126 cases of tick-borne encephalitis were reported, primarily from endemic northeastern areas.

Conclusions:

  • Bacterial meningitis and encephalitis incidence is decreasing in Poland, while viral infections remain stable.
  • Neisseria meningitidis, Streptococcus pneumoniae, and Haemophilus influenzae are significant etiological agents, with a notable rise in Type C N. meningitidis.
  • Tick-borne encephalitis remains a concern in specific endemic regions of Poland.

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