The virulence genes responsible for turning harmless meningitis B bacteria into potential killers have been mapped by researchers at Oxford University. This provides hope for the development of a vaccine against a disease that kills 10% of those who contract it.
One in 10 people have the bacteria that cause meningitis B — Neisseria meningitis — living harmlessly in their nose and throat. In some cases, however, the bacterium is triggered to invade the bloodstream, causing meningitis. In a study published in November