IM 0.5 mL in the anterolateral thigh in infant or the deltoid muscle of the upper arm in young childn.
Unvaccinated childn 12-24 mth 2 doses of 0.5 mL w/ at least 2-mth interval between doses,
7-11 mth 2 primary doses of 0.5 mL w/ at least 1-mth interval between doses, followed by booster (3rd) dose in 2nd yr of life w/ at least 2-mth interval after last primary dose.
Infant & toddler 3-dose primary series: 1st dose given as early as 6 wk or at 2 mth w/ 4-8 wk interval. 2nd dose given at 10 wk w/ 4-8 wk interval. 3rd dose given at 14 wk w/ 4-8-wk interval. Booster (4th) dose given at least 6 mth after last primary dose & may be given from 9 mth onwards (preferably between 12-15 mth).