1. Bennett JE, Dolin R, Blaser MJ. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases: 2-Volume Set: Elsevier Health Sciences; 2014.
2. Budd A, Blanton L, Grohskopf L, et al. Manual for the surveillance of vaccine-preventable diseases. Centers for Disease Control and Prevention. 2017.
3. Durability of Vaccine-Induced Immunity Against Tetanus and Diphtheria Toxins: A Cross-sectional Analysis
4. Hinfey P. Tetanus: Background pathophysiology, etiology. Medscape. 2017.
5. Harrison’s Principles of Internal Medicine