Which of the following is not true about sabin vaccine?
<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>
Three doses are given in primary immunization
The doses are given at 4-6 weeks interval
Given intramuscularly
Contains all the 3 strains
Communicable diseases