•The shot is more effective the later you give it and fewer shots are required the later you start: if you start at 7 months old, it is only 2 plus the booster, at 12 months old it is one plus the booster, and at or after 15 months old it is a single shot.
•Since the statistics show clearly that the reduction in HIB in the population is entirely related to the older kids getting immunized, I immunize as late as possible for this, thus reducing the shot count