<p>A suspected meningitis case was any resident of NBEG state with onset of fever (&gt;38°C) and neck stiffness or other meningeal signs from 1st January 2022. Confirmed case was a suspected case laboratory confirmed by identifying bacterial pathogen in cerebral spinal fluid (CSF) using polymerase chain reaction (PCR) test. We interviewed case-patients to collect demographics, clinical and exposure information, and collected CSF specimens. We conducted active case search in communities and health facilities, reviewed medical records, and line-listed cases. We computed frequencies, proportions, attack rate (AR) and case-fatality rate (CFR)</p>