Meningitis B is particularly dangerous for children, leading to 120 deaths in the UK every year. There are around 1,200 new cases of meningitis B every year. Around 1 in 10 victims die and another 15 per cent are left with permanent disabilities - often limbs have to be amputated due to blood poisoning. The infection causes inflammation of the membranes surrounding the spinal cord and brain. Symptoms include a severe headache, vomiting, a rash, sensitivity to light and a stiff neck.