Definition of "meningococcal" [meningococcal]

• Of, pertaining to, or caused by meningococci (adjective)

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• "It costs less than 50 cents a dose and provides 10 years of immunity against a form of meningitis called meningococcal-A, which infects the lining around the brain and spinal cord and can kill or disable its victims."
• "A first dose of what's called meningococcal conjugate vaccine between ages 11 and 12, with a booster dose at 16."
• "The university and the Dane County Coronor's office believe he had a form of meningitis known as meningococcal disease, a rare and serious bacterial infection that can quickly cause grave illness or death."