Walking pneumonia: A lay term used to refer to atypical pneumonia and typically doesn't require bedrest or hospitalization. Pneumonia is an infection of the lung; atypical pneumonia refers to pneumonia caused by certain bacteria, including Legionella pneumophila, Mycoplasma pneumoniae, and Chlamydophila pneumoniae. Typically, the pneumonia produced by Mycoplasma and Chlamydophila is characterized by mild symptoms. The most common symptoms of pneumonia are chills and fever, shortness of breath, and cough. Muscle aches and loss of appetite are also common. Treatment involves antibiotics and fever-reducing medications.
REFERENCE: PubMed Health.com. Atypcial Pneumonia.