This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Booster dose of Tetanus toxoid should be given every? 
Select and explain. 
A. 1 year, B. 5 years, C. 10 year, D. 15 year
B: 5 years
Answer: B: 5 years 
Explanation: Firs t booster dose should be given a year after initial 2 doses. No more than 1 additional booster dose given 5 years after 3rd dose is required in adults Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 330