1. What is bronchopneumonia in babies? Baby bronchopneumonia refers to lung infection caused by viruses, bacteria, etc. in infants and young children. It mainly presents symptoms such as cough, wheezing, and shortness of breath. The disease mostly occurs in autumn and winter, and susceptible groups include infants and young children aged 6 months to 2 years old and people with poor immunity. 2. Symptoms of bronchopneumonia in babies