[Changes in clinical and epidemiologic characteristics in Western Bohemia of invasive meningococcal disease associated with the occurrence of an invasive clone of Neisseria meningitidis].

The authors analyzed the incidence of meningococcal diseases in the West Bohemian region in 1982-1996. The draw attention to changes of clinical and epidemiological characteristics of the disease which appeared in 1994 in conjunction with a new invasive clonus of Neisseria meningitidis C:2a:P1.2, P1.