How can you know if your child has pneumonia?

Doctor diagnoses: Pneumonia in it's simplest definition is an infection of the lungs.It can be bacterial or viral.Symptoms tend to always include cough and fever along with breathing changes. Symptoms like fatigue and difficulty breathing can appear without warning, and can be severe.Certain symptoms, like cough and fatigue, may last for weeks, or longer.Your doctor will spot check Oxygen levels and listen to lungs