Dr Neetu Talwar, Senior Consultant,
Division Of Paediatric Pulmonology, FMRI, Gurgaon
Pneumonia in simple terms means an infection of the lungs. In pneumonia one or both lungs are affected due to a variety of causes leading to collection of some fluid in the lung tissue. As a result, there is loss of area available for gas exchange leading to difficulty in breathing as well as fast breathing to maintain the desired air exchange.