Islam SM, Chowdhury SM, A. M, Das BC, M. R, K. M, M. A, Haque AKMM. Massive diphtheria outbreak in South Asia: an epidemiological evidence review and lesson learnt. Int J Community Med Public Health [Internet]. 2020 Dec. 25 [cited 2025 Oct. 26];8(1):439-45. Available from: https://www.ijcmph.com/index.php/ijcmph/article/view/7330