On May 23, 2022, the Grand Cape Mount County Health Team received a call from the Officer in Charge (OIC), and Environmental Health Technician assigned at the Kinjor Health facility informing the team that the Mavor and Mafa rivers had been polluted and aquatic species were dying along with a dog. Based on the information and approval from the National Public Health Institute of Liberia, the Liberia Field Epidemiology Training program (LFETP) dispatched a team of two residents from Intermediate Cohort 6 to join both the county and National teams to conduct an outbreak investigation to establish the existence of the outbreak, identify causes, sources, mode of transmission, the magnitude of the outbreak and risk factor associated with the outbreak.
An alleged outbreak of chemical spill affecting three districts was reported from Grand Cape Mount County. The likely cause of the outbreak was the contamination of water bodies by cyanide.