Neisseria meningitidis


Droplet / Contact Precautions
Droplet / Contact Precautions

General Information

Pathogen information

Encapsulated gram negative diplococci


Normal flora - humans are the reservoir

Quadrivalent vaccine prevents disease by serogroups A/C/W-135/Y
Two serogroup B vaccines available
May occur sporadically or in outbreaks.

Associated syndromes

Colonizer and cause of invasive disease:

  •  Meningitis

  •  Meningococcemia


  •  Pneumonia

  •  Septic arthritis

  •  Pericarditis

  •  Conjunctivitis

  •  Others

Generally of little significance when cultured from nonsterile sites i.e. genital area, pharynx.

Additional Information

Droplet/contact Precautions until 24 hours of appropriate antibiotic therapy has been received

Close contacts may require chemoprophylaxis. Healthcare workers may require chemoprophylaxis if unprotected exposure to respiratory secretions

Invasive meningococcal disease is notifiable - call Public Health ASAP

A PCR test from the CSF is available if cultures are negative and infection is suspected. Please contact mircrobiology on call for this test if needed.