M. Musilek et al., GENETIC-HETEROGENEITY OF STRAINS OF NEISSERIA-MENINGITIDIS BELONGING TO SEROTYPE-22 ISOLATED IN THE CZECH-REPUBLIC, Journal of clinical microbiology, 36(2), 1998, pp. 563-565
Strains of Neisseria meningitidis of serogroup B isolated in the Czech
Republic frequently belong to serotype 22. We analyzed the genetic re
lationships among strains of this serotype by using the multilocus enz
yme electrophoresis technique and the polymorphism of the pilA gene. O
ur results indicate that these strains correspond to a highly heteroge
neous population rather than to the expansion of a single clone.