Which of the following is not true about sabin vaccine?: (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
Answer is A. <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>