Symptoms: Pneumonia is one of the most common diseases in babies, and the younger the child, the more likely he or she is to develop the disease and the more severe the symptoms. The causes of pneumonia are many and complex. Babies aged 0-2 years are also more likely to have pneumonia caused by viruses, while babies aged 2-5 years are more likely to also receive infections from Microplasma, Streptococcus pneumoniae or Haemophilus. When a baby has pneumonia, he or she will have a cough, runny nose, nasal congestion, sneezing or cold-like symptoms, but with a faster breathing rate than a baby with a cold, nasal agitation, and even chest concavity in severe cases. Babies are also more agitated and have a hard time sleeping, and mothers and fathers are usually not easily soothed. Prevention: The prevention of pneumonia is similar to that of influenza, in that parents should ensure that their babies have a balanced diet, as well as allow their babies to strengthen their bodies by exercising more, and develop good hygiene habits. Currently, pneumonia is mainly prevented by vaccination. Medical treatment: If the pneumonia is due to a virus, there is no specific medication, so rest at home, drink more water, and pay attention to the hygiene of the baby’s environment until the symptoms are relieved. If the bacterial pneumonia is caused by Streptococcus pneumoniae or Staphylococcus aureus, there may be fever, depression, shortness of breath, fluid in the lungs and other symptoms, at which point the doctor will recommend giving the baby antibiotics or even hospitalization. Pneumonia is a disease that varies greatly in severity. A mild case of pneumonia may heal with just a few days of medication, while a pneumonia with severe symptoms can be life-threatening. Nowadays, medical conditions are better and there is usually no great danger when your baby has signs of illness, as long as you seek medical attention in time.