Table 2 Predisposing factors and signs of severity
Aetiologic agent | Streptococcus pneumoniae | Predisposing factors |
|---|---|---|
Neisseria meningitidis | ||
Streptococcus pneumoniae | Neisseria meningitidis | Previous history of head injury, surgery at the base of the skull, meningitis, rhinorrhea, sudden onset, neurological signs, otitis, sinusitis or associated pneumopathy, asplenia, human immunodeficiency virus infection |
Neisseria meningitidis | ||
Neisseria meningitidis | Neisseria meningitidis | Possible epidemic, purpura |
Neisseria meningitidis | ||
Listeria monocytogenes | Absence of predisposing factors and signs of severity | Immunodepression, signs of rhomboencephalitis, cloudy cerebrospinal fluid with mixed composition |
Neisseria meningitidis | ||
Haemophilus influenzae | Listeria monocytogenes | Age <5 years, absence of vaccination. |
Suggestive features and comments | ||
Principal signs of severity | Suggestive features and comments | Purpura fulminans, deep coma (Glasgow coma score <8), cardiorespiratory failure |
Aetiologic diagnoses and suggestive features | ||