Gram-negative meningitis
Meningitis is present when the membranes covering the brain and spinal cord become swollen and inflamed. This covering is called the meninges.
Bacteria are one type of germ that may cause meningitis. Gram-negative bacteria are a type of bacteria that behave in a similar manner in the body. They are called gram-negative because they turn pink when tested in the laboratory with a special stain called Gram stain.
Acute bacterial meningitis can be caused by different Gram-negative bacteria including meningococcus and H influenzae.
