In preterm infants born at 32 weeks gestation, when is the earliest recommended time to begin immunizations?

In preterm infants born at 32 weeks gestation, when is the earliest recommended time to begin immunizations?

• A. 2 months corrected age
• B. Chronological age
• C. 6 weeks corrected age
• D. Immediately after birth

Answer: (A)

Immunizations in preterm infants follow the same schedule as term infants when measured by chronological age, not corrected (adjusted) age for prematurity. A baby born at 32 weeks is about 8 weeks early, so waiting for a corrected age of 2 months would delay most vaccines until roughly 4 months of chronological age, leaving the infant unprotected during a vulnerable period. The usual time to start the routine immunization series is when the infant reaches about 2 months of chronological age after birth. Note that certain vaccines, such as a birth dose of Hepatitis B, may be given at birth, but the broader early-childhood vaccine schedule starts at roughly 2 months chronological age.

Immunizations in preterm infants follow the same schedule as term infants when measured by chronological age, not corrected (adjusted) age for prematurity. A baby born at 32 weeks is about 8 weeks early, so waiting for a corrected age of 2 months would delay most vaccines until roughly 4 months of chronological age, leaving the infant unprotected during a vulnerable period. The usual time to start the routine immunization series is when the infant reaches about 2 months of chronological age after birth.

Note that certain vaccines, such as a birth dose of Hepatitis B, may be given at birth, but the broader early-childhood vaccine schedule starts at roughly 2 months chronological age.