Neisseria meningitidis, Serogroup C

**Definition:** Strains of Neisseria meningitidis responsible for most sporadic cases in teenagers and almost all outbreaks of disease in this age group. These strains are less common in infants.

**Tree numbers:** - B03.440.400.425.550.550.641.720 - B03.660.075.525.520.500.720

**Synonyms:** - Meningococcus, Serogroup C - Meningococci, Serogroup C