Pneumonia is an infectious lung disease. It can affect people of all age groups. Pneumonia in babies can be fatal. The ...

Lobar pneumonia (characterized by infected and inflamed lobes of the lung) may follow four distinct stages, which can help guide treatment and assess the severity of infection. However ...

how it changes your lungs, and how it's treated. Quick Facts About MERS and How It Spreads MERS is a respiratory illness that can lead to fever, shortness of breath, pneumonia and kidney failure.