Does the 4-day grace period apply for the 4th dose of DTaP if it is given before 12 months of age?
Related Questions
- Since the booster dose of Hib vaccine can be given at 12-15 months, is it still necessary to "boost" two months later if the first dose was given at 12-14 months?
- Does the 4-day grace period apply for the 4th dose of DTaP if it is given before 12 months of age?
- Why does CoCASA consider a 4th dose of DTaP given at 4 months after dose 3 invalid?