A 2-month-old infant is brought for routine vaccination. The child was born prematurely at 28 weeks and is now 8 weeks chronological age (but corrected age of 2 weeks premature). The child is currently well and thriving. Which of the following is the most appropriate approach to immunization?

• A Delay all vaccines until the corrected age of 2 months
• B Vaccinate according to chronological age, not corrected age ✓
• C Give only half-doses of all vaccines due to prematurity
• D Skip live vaccines until corrected age of 6 months

Explanation

Premature infants should be vaccinated according to their chronological (postnatal) age, not corrected gestational age, regardless of prematurity. This is because protection against infectious diseases is needed from birth, and immune responses to vaccines, while slightly lower in very preterm neonates, are still adequate. IAP guidelines confirm: vaccines should not be delayed based on prematurity. Hepatitis B birth dose is given to all neonates regardless of weight (if >2 kg at birth) or after clinical stability. The only exception is BCG, which may be deferred in VLBW neonates until they reach 2 kg.

Reference: Ghai Essential Pediatrics, 10th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.