is phenomena contagious
Pneumonia is inflammation of the lung usually caused by bacterial or viral infection (rarely, also by fungi) that causes the air sacs to fill with pus. If inflammation affects both lungs, the infection is termed double pneumonia. If it affects one lung, it is termed single pneumonia.any contagious pneumonias have names such as bacterial pneumonia, viral pneumonia, Mycoplasma pneumonia and MRSA (methicillin-resistant Staphylococcus aureus) pneumonia that indicate the type of pathogen infecting the lung.