[Meningitis and encephalitis in Poland in 2010].

INTRODUCTION

Annually 2 000-3 000 cases of meningitis and encephalitis are notified to the Polish surveillance system. The leading etiologic agents of the bacterial infections are: N. meningitidis, S. pneumoniae, H. influenzae type B and L. monocytogenes. The most common causes of bacterial infections in children are: E. coli, S. agalactiae and H. influenzae type B. The viral infections are mainly caused by the following pathogens: Echovirus, Coxsackie virus group A and B. The agents responsible for the viral infections are also: arboviruses, Herpes simplex virus and mumps virus.

OBJECTIVES

The objectives of the present article are to analyze the epidemiology of meningitis and encephalitis in Poland in 2010 and to present the information on the vaccines used to prevent the discussed infections.

MATERIAL AND

METHODS

The analysis was based on the data retrieved from the questionnaires used for the surveillance purposes, aggregated data on meningitis and encephalitis published in "Infectious diseases and poisonings in Poland in 2010", aggregated data on the vaccination coverage published in "Vaccinations in Poland in 2010", "Case definitions for the infectious diseases used for the surveillance purposes in 2009-2011" and Polish Immunization Programme for 2010.

RESULTS

In 2010, Poland reported 3 063 neuroinfections--nearly 22% more than in 2009. The incidence rate was 8.03 cases per 100 000 population. From the analysis of data transpired that of the notified cases, 1 619 were of viral etiology, 846--were bacterial and 598 of other or unknown origin. Given the bacterial infections of determined etiology, the leading pathogenic agent was S. pneumoniae (180 cases), following by N. meningitidis (146 cases) and Haemophilus influenzae typu B (11 cases). Among confirmed cases of the viral infections, the predominant were tick-borne encephalitis cases (294).

CONCLUSIONS

Compared to the data from 2009, the epidemiologic situation of the meningitis and encephalitis in Poland in 2010 has not changed significantly.