Pneumonia in children is a serious lung infection that causes inflammation in the air sacs (alveoli), which can fill with fluid or pus. It is commonly caused by bacteria, viruses, or fungi. Symptoms in children often include coughing, rapid or labored breathing, fever, and chest pain. Young children, especially under five years old, are at higher risk due to weaker immune systems. Treatment depends on the cause, with bacterial pneumonia typically requiring antibiotics, while viral pneumonia ofte