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A petition calling for the meningitis B vaccine to be given to all children, at least up to age 11 years, has gained a record number of signatories following the high profile case of a two-year-old child who died from the infection and whose parents believed they should have received the vaccine. So what is meningitis B and why is the vaccine for it only given to babies under the age of one?

Read the full article on The Conversation website, written by Manish Sadarangani, Department of Paediatrics.

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