What Is Meningococcal Disease?
Meningococcal disease is a rare but very serious bacterial infection that causes meningitis, which is a swelling of the protective membranes that cover the brain and spinal cord. Meningococcal disease can also cause bloodstream poisoning , which is called meningococcal sepsis or meningococcemia. The terms meningitis and meningococcal disease are often used interchangeably.
How Serious Is Meningococcal Disease?
Meningococcal disease is extremely serious. Even with rapid treatment, 10 to 15 out of every 100 people who get meningococcal disease will die. Up to 1 in 5 people who survive meningococcal disease will have long-term disabilities, including limb amputations, deafness, brain damage and issues with kidney function.
Who Is at Risk?
Anyone can get meningococcal disease, but some people have a higher risk for it. Those at a higher risk include adolescents and young adults, infants and people living in crowded settings like college dorms or military barracks.
What Are the Symptoms?
Early symptoms of meningococcal disease can be like the flu or other viral infections, but the symptoms can progress quickly, and meningococcal disease can be deadly within a matter of just hours. The symptoms vary depending on the illness.
Symptoms of Meningitis
- Sensitivity to bright light
- Severe headaches
- Stiff neck
Symptoms of Meningococcemia
- Pale or mottled skin, purplish rash
- Unusual cold hands and feet
- Breathing fast & breathless
- Limb, joint & muscle pain
Symptoms of Both
- Very sleepy & vacant
- High fever
- Confused & delirious
Symptoms in infants and babies: Some of the symptoms most commonly associated with meningitis, such as high fever, stiff neck or headache, might not appear or might be difficult to detect in infants or babies.
Symptoms can vary and may come on suddenly and/or severely. Please contact your healthcare provider with questions.
What Is the Treatment?
Meningococcal disease is treated with antibiotics. Treatment must begin early to be effective, but unfortunately it is not easy for healthcare professionals to identify and diagnose the infection in its early stages. Even if treatment is started as soon as possible, it might not prevent death or serious long-term complications such as hearing loss, brain damage, kidney disease or limb amputations.
When someone is diagnosed with meningococcal disease, those who’ve been in close contact with that person are given antibiotics as a preventive measure. This usually includes people living in the same household or anyone who comes into direct contact with a patient’s saliva, such as a boyfriend or girlfriend.
Can Meningococcal Disease Be Prevented?
Vaccination is the best protection against meningococcal disease. There are two types of vaccines available in the United States: MenACWY and MenB. The Centers for Disease Control and Prevention (CDC) recommends a dose of MenACWY for every adolescent at age 11 to 12 with a second dose at age 16. Teens and young adults from 16 to 23 years of age may also get the MenB vaccine. The National Meningitis Association recommends that parents and teens talk to their healthcare provider about both vaccines.
Meningococcal vaccination is also recommended for people outside of these ages with certain medical conditions, travel plans or jobs. You can read more on the CDC website.
What Do Those Letters Mean—A, B, C, W and Y?
Meningococcal bacteria are categorized into serogroups called A, B, C, W and Y.
Serogroup B accounts for about one-third of U.S. cases and is the most common serogroup in adolescents. Since 2011, every known outbreak of meningitis on a U.S. college campus has been caused by MenB. While MenB is currently the most common form, symptoms of meningococcal disease and risk of death are the same across serogroups.
How Is Meningococcal Disease Spread?
Meningococcal disease is contagious. The bacteria that causes it is spread by people sharing respiratory secretions by close contact, such as kissing or coughing. Meningococcal bacteria cannot live outside the body for very long, which means the infection is not as easily spread as a cold virus.
About one in 10 people carry meningococcal bacteria in their nose or throat without showing any signs or symptoms of the disease. These people can still transmit the bacteria to others who can become ill.
Can Other Infections Cause Meningitis?
Yes. Meningitis is most often caused by one of several types of bacteria or a virus. It can also be caused by injuries, cancer, certain drugs and sometimes other types of infectious, such as a fungus.
Bacterial meningitis is the most likely to be fatal. Meningococcal disease is the most common type of meningitis in U.S. children age 2 to 18. Other bacteria that can cause meningitis include Streptococcus pneumoniae (pneumococcal disease) and Haemophilus influenzae type B (Hib Disease), both of which have vaccines to protect against them.
Viral meningitis has similar symptoms to bacterial meningitis but is not as deadly. There is no specific treatment available for viral meningitis, but most patients fully recover.
Fungal meningitis is rare in the United States and is not contagious (it does not spread between people). It develops mainly in people with weakened immune systems when a fungus spreads from somewhere else in their body to the brain or spinal cord. Fungal meningitis is treated with anti-fungal medications
This site is supported by grants and donations to the National Meningitis Association.