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What is Not a live vaccine and explain in detail?
Preparation of salk vaccine Virus is grown in monkey kidney cells and inactivated by formalin. Each dose of vaccine contains total 80 units of D antigen of all the three poliovirus serotypes. schedule 4 doses 1st 3 doses with 1-2 months gap, 4th booster dose is given 6-12 months after the 3rd dose.