Protection that helps prevent life threatening infections in teens and young adults
Meningococcal disease is a rare but fastmoving illness that can become life threatening within hours. It occurs when bacteria infect the blood, brain, or spinal cord. Even healthy appearing individuals can carry and spread the bacteria through saliva or close contact—such as sharing drinks, living in close quarters, or kissing.
The disease is one of the most serious causes of meningitis (brain swelling) and most often affects older teens and young adults.
Vaccination is the best way to protect against meningococcal disease. At Marshfield Clinic, our Family Medicine and Pediatric providers help ensure preteens, teens, and young adults stay up to date with recommended vaccines.
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View immunization history
You can view your immunization history by logging into My Marshfield Clinic.
Symptoms
Meningococcal disease may start with flu-like symptoms and quickly become severe. Symptoms can include:
- Sudden fever
- Headache
- Stiff neck
- Nausea or vomiting
- Sensitivity to light
- Confusion or fatigue
Seek immediate care if meningitis is suspected.
Possible complications
Meningococcal disease can cause:
- Brain and spinal cord infection (meningitis)
- Bloodstream infection
- Permanent disability
- Death
Vaccination significantly reduces the risk of these severe outcomes.
Who's most at risk?
Those at higher risk include:
- Older teens and young adults
- People living in close quarters (e.g., dorms)
- Individuals with certain health conditions
Vaccine recommendations
Two types of meningococcal vaccines are recommended:
MenACWY (conjugate vaccine):
- First dose at age 11
- Second dose at age 16
MenB (serogroup B vaccine):
- May be recommended for:
- People 10+ years with certain health conditions
- Adolescents 16–18 years with specific risk factors
Your provider can help determine which vaccine is appropriate.
How Marshfield Clinic supports you
We partner with families and teens to:
- Review vaccine history
- Provide ageappropriate guidance
- Answer questions in a supportive, clear way
- Coordinate routine preteen and teen vaccinations
Frequently asked questions
Can healthy people spread meningococcal bactera?
Yes. Many people carry the bacteria without knowing it.
Is the meningococcal vaccine safe?
Yes. These vaccines have been well studied, with mild and temporary side effects such as arm soreness.