13 March 2019 This condition is most common in premature babies that have been on mechanical ventilation for long periods. It can also occur in full-term newborns with severe lung disease, however. As a child with bronchopulmonary dysplasia grows, new lung tissue is normal and respiratory function improves progressively. Even so, in the child’s first two years, it is more susceptible to respiratory infections . Strict precautionary measures are therefore justified to keep the child away from people with respiratory infections. This article was written with the support of physicians and other clinical professionals from the Hospital da Luz network . The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.