[a clone of neisseria meningitidis serogroup c was responsible in 1994 of an unusual high rate of strains with a moderate resistance to penicillin in caracas (venezuela)]. | the aim of the study was to analyse meningococcal strains isolated from patients in caracas (venezuela) with epidemiological markers and to determine their susceptibility to antimicrobial agents. | 1997 | 9424121 |