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
Which of the following is not true about sabin vaccine? 
Select and explain. 
A. Three doses are given in primary immunization, B. The doses are given at 4-6 weeks interval, C. Given intramuscularly, D. Contains all the 3 strains
A: Three doses are given in primary immunization
Answer: A: Three doses are given in primary immunization 
Explanation: <p> The primary course of immunisation consists of 4 inoculations. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:206. <\p>