After proper care and feeding, the late development of a 35-week preterm baby will not be too different from that of a normal full-term baby. Babies born at 35 weeks are preterm, and their organs, especially their lungs, are not yet well developed, so they will usually be treated to promote fetal lung maturation. In addition, 35-week preterm babies are born with a relatively low birth weight and weak immune system defenses, making them susceptible to disease. After birth, 35-week preterm infants need to be closely monitored in the neonatal intensive care unit and discharged home after their organs have matured and they have gained the required weight. With proper care and feeding practices and active supplementation, the development of a 35-week preterm baby will not differ greatly from that of a normal full-term baby.