What are the symptoms of meningitis and how is it spread?

A vaccination program targeting one million teenagers and young adults is being launched, after concerns about the number of meningitis B infections.

Officials say the program will help protect those at "highest immediate risk".

Meningococcal disease can lead to life-threatening illness.

Meningitis is an infection of the protective membranes that surround the brain and spinal cord.

It can affect anyone but is most common in babies, young children, teenagers and young adults. It can be very serious if not treated quickly.

Source: BBC News Health RSS (Open Press / Translated Full Text)