Men B vaccine for young people

Meningococcal disease can cause meningitis (inflammation of the brain and spinal cord) and sepsis (a life-threatening reaction to  an infection that can harm your whole body). Meningitis and sepsis are life threatening. 

Learn more about the meningococcal disease 

MenB is short for meningococcal group B bacteria. MenB is one of several types of meningococcal bacteria. The other most common types include W, Y and C. 

The MenB vaccine helps protect babies from meningitis and sepsis caused by meningococcal group B bacteria. It does not protect against other types of meningococcal bacteria. Teenagers are offered a different vaccine, called MenACWY, to help protect against types A, C, W and Y.

Learn more about meningococcal group B bacteria (MenB) 

Public Health Wales have more information about who’s eligible for the vaccine.

Last Updated: 24/07/2026 14:12:08
The information on this page has been adapted by NHS Wales from original content supplied by NHS website nhs.uk