The Digester

Key facts on what meningitis B is, how to spot it, how it spreads, when to seek care, treatment basics and vaccine availability.

Meningitis B is a bacterial infection from Neisseria meningitidis group B that inflames the brain and spinal cord lining.
Symptoms can come on quickly and include fever, headache, stiff neck, vomiting, confusion and a rash that may not fade when pressed.
Infants, teenagers and young adults are at higher risk and outbreaks are more likely in close-contact settings such as dormitories.
The bacteria spread through respiratory droplets and close personal contact so casual brief encounters carry lower risk.
Diagnosis requires urgent tests such as blood cultures and lumbar puncture to examine cerebrospinal fluid.
Treatment is immediate intravenous antibiotics and supportive care, and close contacts are often offered antibiotic prophylaxis.
MenB vaccines are available in many countries but national recommendations vary, so check local health guidance and speak to a clinician if you are unsure.

Meningitis B: Your questions answered