Meningococcal Disease Tests Test
Meningococcal disease tests look for meningococcal bacteria in your blood or cerebrospinal fluid (CSF) to find out if you have meningococcal disease.
What this test measures
Meningococcal disease tests look for Neisseria meningitidis bacteria in a sample of your blood or cerebrospinal fluid (CSF). Tests include culture, PCR, and antigen tests.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Higher-than-normal results
A positive result means that meningococcal bacteria were found in your blood or CSF sample. You most likely have meningococcal disease.
Lower-than-normal results
A negative result means that no meningococcal bacteria were found in your blood or CSF sample. Most likely, your symptoms are not caused by meningococcal disease.
Frequently asked questions
What is meningococcal disease?
Meningococcal disease is any infection caused by meningococcal bacteria (Neisseria meningitidis).
How is meningococcal disease spread?
It spreads through close contact with respiratory or throat secretions, such as kissing or living together. It is not as contagious as the common cold or flu.
What are the common symptoms?
Common symptoms include sudden high fever, neck stiffness, confusion, nausea, vomiting, fatigue, and rash.
Who is at higher risk for meningococcal disease?
People at higher risk include those under 1 year old, teens and young adults 16-23, adults 65 and older, people with weakened immune systems, and those living in close quarters like college campuses or military bases.
What does a positive test result mean?
A positive result means meningococcal bacteria were found in your sample, and you most likely have meningococcal disease.
Related lab tests
Sources
- MedlinePlus: Meningococcal Disease Tests — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.