Neisseria meningitidis is a gram-negative diplococcus known for causing serious infections like meningococcemia and meningitis. This video explains its transmission via aerosolized respiratory droplets and how it colonizes the nasopharyngeal epithelium. Learn about the progression from asymptomatic colonization to invasive disease, including bloodstream infection and spread to the meninges through the cerebral capillary endothelium or choroid plexus.

We’ll also cover prevention strategies, including vaccination against common serogroups and prophylactic antibiotic treatments like rifampin or ciprofloxacin for close contacts. Understanding early recognition and treatment can save lives.


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