Meningococcal Disease

Meningococcal disease is a serious bacterial infection caused by Neisseria meningitidis, a bacterium that can lead to two life-threatening conditions: meningitis, an infection of the membranes surrounding the brain and spinal cord, and septicaemia, a severe bloodstream infection. The bacteria are spread through close or prolonged contact with an infected person, typically via respiratory droplets from the nose and throat through coughing, sneezing, or kissing. Many people carry the bacteria harmlessly at the back of the throat without becoming ill, but in some cases it can invade the body and cause rapid, severe illness. There are several strains of the bacteria, known as serogroups, with A, B, C, W, and Y being the most clinically significant. Serogroup A is the predominant cause of large outbreaks in sub-Saharan Africa, in a region known as the meningitis belt, which stretches from Senegal in the west to Ethiopia in the east. Serogroup W has been associated with outbreaks among Hajj pilgrims, and vaccination against serogroups A, C, W, and Y is now a mandatory requirement for entry to Saudi Arabia for religious pilgrimage. Travellers who live or work closely with local populations, or who travel during outbreak periods, are at greatest risk.

Symptoms

Meningococcal disease can progress with alarming speed, sometimes from the first symptoms to a critical condition within hours, making early recognition essential. Initial symptoms can be difficult to distinguish from a common viral illness and may include a sudden high fever, severe headache, nausea, and vomiting. As the disease develops, more distinctive signs may appear, including a stiff neck, sensitivity to light, confusion, and a dislike of loud noise. One of the most recognisable signs of meningococcal septicaemia is a red or purple rash that does not fade when a glass is pressed against it, known as the glass test. This rash indicates bleeding under the skin and is a medical emergency requiring immediate attention. Not all patients develop a rash, however, which can make diagnosis more challenging. Without prompt treatment with antibiotics, meningococcal disease can be fatal within twenty-four hours. Even with treatment, around one in ten people who develop the disease will die, and survivors may be left with serious long-term complications including hearing loss, brain damage, and limb amputation due to tissue damage caused by septicaemia.

Vaccination

The meningococcal ACWY vaccine provides protection against four of the most common and dangerous strains of Neisseria meningitidis, namely serogroups A, C, W, and Y. It is given as a single injection and is generally well tolerated, with most people experiencing only mild and short-lived side effects such as soreness at the injection site. A booster dose is recommended every five years for those who remain at ongoing risk. The vaccine is strongly recommended for travellers visiting sub-Saharan Africa, particularly during the dry season between December and June when transmission is highest, and is a mandatory requirement for pilgrims travelling to Saudi Arabia for Hajj or Umrah. It is also recommended for travellers to other regions where meningococcal disease is known to be prevalent, including parts of South Asia and South America. It is important to note that the ACWY vaccine does not protect against serogroup B, which is the most common strain in the UK. A separate vaccine for meningococcal B is available and may be appropriate for some travellers depending on their circumstances. At Market Harborough Travel Clinic, we will assess your individual risk to advise on the most appropriate meningococcal vaccination for your trip.

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If you are planning to travel abroad, book an appointment with Market Harborough Travel Clinic today.

Our experienced team can provide personalised travel health advice and help you understand which vaccinations, medications, or preventative measures may be appropriate based on your destination, medical history, and individual circumstances.

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