This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious disease, Subject name: Pediatrics
Which is not given at the time of bih? 
Select and explain. 
A. OPV, B. BCG, C. Hepatitis B, D. HiB
D: HiB
Answer: D: HiB 
Explanation: Routine vaccination of Hib vaccine is staed at the age of 2 months of age. The vaccine is usually given in infancy as repeated doses together with DPT vaccine. A time lag of 8 weeks between any two doses is ideal. A booster is recommended at 12-18 months of age. Reference: Ghai essential pediatrics 6th edition Page 197