Kama, J., R. Sanusi Karama, and J. Prithvi. “Diphtheria Outbreak Triggered by Low Vaccine Coverage and Socioeconomic Status in 2023: Nigeria”. International Journal Of Community Medicine And Public Health, vol. 11, no. 12, Nov. 2024, pp. 5032-7, doi:10.18203/2394-6040.ijcmph20243673.