This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Minimum interval between 2 live vaccine immunization ? 
Select and explain. 
A. 2 weeks, B. 4 weeks, C. 6 week, D. 8 weeks
B: 4 weeks
Answer: B: 4 weeks 
Explanation: Ans. is 'b' i.e., 4 weeks Basic principle of immunezation Minimum 4 weck interval recommended between 2 live vaccine adminstration except OPV and oral thyphoid. Two or more killed vaccine may be administrated simultaneously or at any given interval A live and killed vaccine given simultaneously but at different site. If immunisation status unknown, give age appropriate vaccine Mixing of vaccine in same syringe not recommended Live vaccine should be avoided in AIDS,