How can you tell if the headache you’ve got is just a headache or something more? Most headaches are harmless but sometimes they can be a sign of something serious.
The meninges are the membranes which surround your brain and spinal cord. Meningitis is an inflammation of the meninges. Viral infections are the most common cause.
In the United States between 1998 and 2007, around 1,500 people were infected with meningococcal disease, a type of meningitis, according to the National Meningitis Association.