[The study of carrier of Neisseria meningitidis performed in Zielonec and characteristics of meningogocci isolated from patients at the Wołomin hospital, Warsaw district].

Meningococcal carriage study, performed after N. meningitidis outbreak in Zielonka included 130 persons (111 children). No N. meningitidis strain was isolated. Phenotype and genotype analysis of 6 meningococcal isolates obtained from blood and CSF, showed their heterogeneity with exception of 2 isolates from Zielonka's cases of meningococcal sepsis which were identical.