[Meningitis and encephalitis in Poland in 2008].

In Poland, 2 475 cases of neuroinfections were reported in 2008, of which 979 had bacterial aetiology, 1 122--viral aetiology, and 374--other or unknown origin. The etiological agent was determined in 555 (56%) cases of bacterial neuroinfections. Among them Neisseria meningitidis was found in 220 cases, Haemophilus influenzae type B (Hib) in 23 cases and Streptococcus pneumoniae in 151 cases. An increasing trend in meningococcal infections incidence has been observed in 2008, and a substantial decrease of Hib incidence, related to increasing vaccination coverage. Viral neuroinfections incidence in 2008 decreased compared to year 2007. Among confirmed cases, there were 202 cases of tick-borne encephalitis. Most of the cases were reported from endemic areas of north-eastern part of the country.