Bacterial Meningitis in Babies and Children
Content reviewed against published CDC, AAP, NIH, Mayo Clinic guidelines
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Bacterial meningitis is a serious, life-threatening infection of the membranes (meninges) surrounding the brain and spinal cord. In infants and young children, the most common causes are Group B Streptococcus (newborns), Streptococcus pneumoniae, and Neisseria meningitidis. Early recognition and treatment are critical as the disease can progress rapidly and cause death or permanent disability within hours.
Key takeaways
- Bacterial meningitis is a serious, life-threatening infection of the membranes (meninges) surrounding the brain and spinal cord.
- Duration: Hospital stay of 7-14 days for IV antibiotics. Total antibiotic course depends on the organism: 7 days for meningococcal, 10-14 days for pneumococcal, 21 days for Group B Strep or gram-negative. Recovery from complications may take months to years.
- Go to ER if: Non-blanching purple or red rash with fever (do not wait — call 911)
- A vaccine or immunization is available
Symptoms
How It Presents by Age
0-1 month
Symptoms are often subtle and non-specific: poor feeding, lethargy, temperature instability (fever or hypothermia), irritability, bulging fontanelle, apnea. Classic signs of neck stiffness are often ABSENT. Group B Strep and E. coli are the most common causes.
Risk level: Very high — mortality 10-15%, significant morbidity
1-3 months
May present with fever, irritability, poor feeding, vomiting, and lethargy. Fontanelle may be bulging or tense. Neck stiffness still unreliable. A high index of suspicion is needed.
Risk level: Very high
3-12 months
Fever, irritability, vomiting, and lethargy. Bulging fontanelle is an important sign. May have seizures. Beginning to show some classic meningeal signs but still unreliable.
Risk level: High
1-5 years
More classic presentation with fever, headache, neck stiffness, vomiting, photophobia, and altered mental status. Non-blanching rash is a red flag for meningococcal disease. Rapid deterioration possible.
Risk level: High
Treatment
Empiric IV antibiotics
Started immediately — before lumbar puncture results. Typical empiric therapy: ampicillin plus cefotaxime for neonates; ceftriaxone plus vancomycin for older infants and children. Adjusted once culture results are available.
Dexamethasone
IV corticosteroid given before or with the first dose of antibiotics to reduce inflammation and improve outcomes, particularly for Haemophilus influenzae type b and pneumococcal meningitis.
Supportive ICU care
Monitoring and management of increased intracranial pressure, seizures, fluid balance, electrolytes (watch for SIADH), and vital signs.
Seizure management
Anticonvulsant medications if seizures occur. Continuous EEG monitoring may be needed.
Close contact prophylaxis
For meningococcal meningitis, close contacts receive prophylactic antibiotics (rifampin, ciprofloxacin, or ceftriaxone) within 24 hours.
Home Care
- There are NO home remedies for bacterial meningitis — this is a medical emergency
- Call 911 or go to the ER immediately if meningitis is suspected
- While waiting for emergency services, keep the child in a quiet, dim room
- Do not give food or drink in case the child needs emergency procedures
- Note the time symptoms started for medical team
- Bring a list of medications and allergies to the hospital
When to Worry
Go to the ER if:
- Non-blanching purple or red rash with fever (do not wait — call 911)
- Bulging fontanelle with fever and lethargy
- Seizure with fever
- Child is limp, unresponsive, or extremely difficult to wake
- High-pitched inconsolable crying with fever
- Rapidly worsening condition with fever
- Cold extremities, mottled skin, or signs of shock
- Severe neck stiffness with fever and vomiting
Call your doctor if:
- Fever in an infant under 3 months (always requires evaluation)
- Child with fever who is increasingly irritable or lethargic
- Fever with vomiting and headache
- Stiff neck with fever
- Close contact with someone diagnosed with meningococcal meningitis
Keep an eye on:
- Any combination of fever + irritability + lethargy in an infant
- Bulging fontanelle with fever
- Non-blanching rash (petechiae or purpura) with fever
- High-pitched cry that is different from normal
- Child is difficult to wake or unusually limp
- Neck stiffness with fever in an older child
Prevention
- Hib vaccine (Haemophilus influenzae type b) — routine childhood vaccination
- PCV13/PCV15/PCV20 (pneumococcal conjugate vaccine) — routine childhood vaccination
- Meningococcal vaccines (MenACWY at age 11-12; MenB at 16-23 years or high-risk)
- Group B Strep screening and intrapartum antibiotic prophylaxis during labor
- Good hand hygiene
- Avoid sharing drinking glasses, utensils, or lip products
- Post-exposure prophylaxis for close contacts of meningococcal cases
- Keep vaccinations up to date
Contagion & Incubation
Incubation
2-10 days depending on the bacterial cause, though onset can be sudden
Contagious for
Variable by organism. Meningococcal meningitis is contagious until 24 hours after starting effective antibiotics. Close contacts may need prophylactic antibiotics.
Duration
Hospital stay of 7-14 days for IV antibiotics. Total antibiotic course depends on the organism: 7 days for meningococcal, 10-14 days for pneumococcal, 21 days for Group B Strep or gram-negative. Recovery from complications may take months to years.
Frequently asked questions
How long does bacterial meningitis last?
How does bacterial meningitis spread?
When should I take my baby to the ER?
Can bacterial meningitis be prevented?
When can my child return to daycare?
Sources
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources
Related Illnesses
Bottom line
Bacterial Meningitis is treatable with appropriate medical care. Seek emergency care if non-blanching purple or red rash with fever (do not wait — call 911).
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.