Diphtheria Outbreak Response and Mitigation Strategies in Nigeria: A Case Study of the Nigerian Red Cross Society (NRCS) Intervention

Abstract

Background: The diphtheria outbreak in Nigeria, starting in December 2022, presented a significant public health challenge with over 16,000 confirmed cases by December 2023. The outbreak predominantly affected children in underserved communities, particularly in northern states such as Kano, Yobe, and Katsina, highlighting critical gaps in vaccination coverage and healthcare infrastructure. The outbreak began to diminish by October 2023, following intensified vaccination and surveillance efforts, and saw significant control measures leading to its near conclusion by February 2024. Methods: This study analyzes the operational response by the Nigerian Red Cross Society (NRCS), the International Federation of Red Cross and Red Crescent Societies (IFRC), the Nigeria Centre for Disease Control (NCDC), and the National Primary Health Care Development Agency (NPHCDA). Data from operational reports, community-based surveillance, immunization campaigns, and health promotion efforts were reviewed to assess intervention effectiveness. Results: Coordinated strategies such as active case search, enhanced surveillance, and community engagement effectively reduced transmission and improved vaccine uptake. Risk communication and community engagement (RCCE) programs helped overcome cultural and religious vaccine hesitancy, while enhanced surveillance facilitated early detection. Operational challenges included low vaccine coverage, limited health infrastructure, and misinformation. Conclusion: The NRCS-led multi-agency response was instrumental in controlling the outbreak, demonstrating the necessity of integrated public health strategies. Sustained investment in healthcare infrastructure, equitable vaccine access, and digital health technologies is essential for future outbreak prevention and early response, ensuring Nigeria’s resilience against similar health emergencies.