Meningococcal disease

What is meningococcal disease?

Meningococcal disease is a contagious disease. It is caused by a type of bacteria called neisseria meningitidis (also known as meningococcal bacteria).

Meningococcal infections can cause invasive meningococcal disease, which can include:

• septicaemia (when bacteria enter your bloodstream and cause blood poisoning)
• sepsis (a life-threatening condition that occurs when the body damages its own tissues and organs in response to infection)
• meningitis (inflammation of the membranes surrounding your brain and spinal cord)

Invasive meningococcal disease can develop quickly and is life-threatening.

Less commonly, meningococcal bacteria can also cause local infections, such as:

• septic arthritis (an infected joint)
• pneumonia
• conjunctivitis

What are the symptoms of meningococcal disease?

Symptoms of invasive meningococcal disease can include:

• fever
• headache
• neck stiffness
• light sensitivity
• nausea and vomiting, or loss of appetite
• drowsiness and confusion
• leg pain or other muscle or joint aches and pains

Meningococcal disease can cause a rash of red or purple pinprick spots, or larger bruise-like areas. The rash does not turn skin-coloured when you press on it with a finger or the side of a clear drinking glass. The rash can be a late sign of meningococcal disease.

In babies and young children, other signs and symptoms of meningococcal disease can include:

• difficulty feeding or reduced feeds
• irritability
• tiredness and floppiness
• seizures
• having a high moaning cry
• having a bulging fontanelle (the soft spot on the top of their head)
• pale or mottled skin

What causes meningococcal disease?

Meningococcal bacteria can live in the nose and throat of healthy people. The bacteria can be spread through:

• coughing
• sneezing
• sharing eating and drinking utensils
• kissing

The most common types of meningococcal bacteria that cause disease are types A, B, C, W and Y.

Who is at risk of meningococcal disease?

Anyone can develop meningococcal disease, but some people are at a higher risk than others.

Those at increased risk are people who:

• have no working spleen or who have certain other rare medical conditions
• have conditions or take treatments that affect their immune systems
• work in a laboratory and handle meningococcus
• are new military recruits
• are university students living in residential colleges (particularly in their first year)
• smoke or are exposed to tobacco smoke
• intimately kiss more than one partner
• have recently had a viral upper respiratory tract infection

When should I see my doctor?

Invasive meningococcal disease can develop quickly and is life-threatening.

Anyone with a suspected meningococcal infection needs to see a doctor immediately. Go to the nearest emergency department.

How is meningococcal disease diagnosed?

Your doctor will ask about your symptoms and examine you.

Tests that can diagnose meningococcal disease include:

• a lumbar puncture
• blood tests

How is meningococcal disease treated?

Meningococcal disease is treated in hospital, and often requires intensive care support.

You will need treatment with intravenous antibiotics (antibiotics through a drip).

Other treatments will depend on your symptoms and condition.

Can meningococcal disease be prevented?

If you’ve been in close contact with someone who has meningococcal disease, you may be given antibiotics to reduce your risk of infection.

You can lower your risk of catching infections if you follow these good hygiene practices:

• Wash your hands regularly.
• Don’t share drink bottles, cups or cutlery.
• Sneeze into your elbow.
• Throw tissues into the bin straight after use and wash your hands.

Vaccination

Vaccination is your best protection against meningococcal disease. There are different vaccines for different types of disease (A, B, C, W and Y).

Vaccination with meningococcal B and meningococcal ACWY vaccines can be done from 6 weeks of age.

Anyone who wants to protect themselves against meningococcal disease should talk to their doctor about getting vaccinated. Meningococcal immunisation is recommended for:

• babies, children, teenagers and young adults
• Aboriginal and/or Torres Strait Islander people
• young adults who live in close quarters or who are current smokers
• travellers
• people who have certain medical conditions that increase their risk of meningococcal disease
• laboratory workers who work with the bacterium that causes meningococcal disease

The table below explains how the meningococcal ACWY vaccine is given and who can get it as part of the National Immunisation Program Schedule.

Meningococcal vaccines should not be given to people who have had a previous severe allergic reaction. They are generally not recommended for pregnant or breastfeeding women.

Meningococcal vaccines are not 100% effective. Even if you (or your child) have had a meningococcal vaccination, go to hospital straight away if you have symptoms of meningococcal disease.

What are the complications of meningococcal disease?

Meningococcal disease is serious and can be life-threatening.

Long-term effects of the disease can include:

• limb differences, or losing a limb
• skin scarring
• hearing loss
• blindness
• learning difficulties
• brain damage