Briefing Note: Meningitis of unknown origin Mexico

On November 4, 2022, the Mexico IHR National Focal Point (NFP) informed the Pan American Health Organization / World Health Organization (PAHO/WHO) about the detection of a cluster of 11 cases of aseptic meningitis of unknown etiology, including one death, all with a history of having undergone surgical procedures with the administration of spinal anesthesia in private hospitals in the city of Durango, Durango State, Mexico.