Public health teams have launched a one-off MenB vaccination programme for students starting university in autumn 2026, with the Joint Committee on Vaccination and Immunisation recommending Teenagers around age 15 receive MenB vaccines and offering catch-up for those who miss them.

Two doses are required for protection, spaced at least 28 days apart, and vaccines are available at local pharmacies with appointments via the NHS website.

NHS is running meningitis B vaccination clinics on university campuses in the South East during Freshers Week to protect first-year students, with sites at Surrey, Kent, Chichester, and on-campus community pharmacies.

Experts say the rapid spread and severity were driven by a combination of genetic changes and high social mixing, with quick progression from infection to severe disease.

UKHSA warns that invasive strains can emerge suddenly and unpredictably, underscoring the need for ongoing genomic surveillance and rapid public health response.

Similar outbreaks are likely to occur again, given the potential for sudden emergence of invasive strains.

Comparative analysis across thousands of Neisseria strains shows the Kent outbreak strain acquired genes from both Neisseria meningitidis and Neisseria cinerea through horizontal gene transfer.

Genome sequencing of six patients indicated a single-source outbreak due to nearly identical bacterial genomes.

Researchers found recurring patterns where variants acquire traits from less invasive organisms, forming focal outbreaks during periods of intense social mixing.

Scientists determined the outbreak strain gained genetic material from harmless throat bacteria, via horizontal transfer, boosting aggressiveness and growth.

Acquired genes increased iron uptake and altered the pilus, contributing to clumping, higher transmissibility, and immune evasion.

A Kent meningitis B outbreak earlier this year was linked to a strain that gained genes from harmless microbes, enhancing its capacity to cause severe disease.