This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
Minimal interval between two live vaccines administered by the oral route is 
Select and explain. 
A. Any time, B. 2 weeks, C. 4 weeks, D. 3 months
A: Any time
Answer: A: Any time 
Explanation: Live vaccines administered by the oral route (Oral Polio vaccine-OPV; oral typhoid and Rota virus) are not believed to interfere with each other if not given simultaneously. These vaccines may be given at any time before or after each other. Live parenteral (injected) vaccines and live intranasal influenza vaccine should either be administered at the same visit or they should be seperated by atleast 4 weeks. Ref: Ghai essentials 9th edition Pgno: 190