Health TopicsinfectionsHow does the meningitis B vaccine work?

How does the meningitis B vaccine work?

Written by Jameson Kowalczyk. Medically reviewed in October 2025 by Megan Burke, MD .

Updated on October 24, 2025.

The meningococcal B (MenB) vaccine protects against the meningococcal bacteria that causes meningitis B. Watch this video to learn how this vaccine works.

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