Pneumonia is a lung infection. It can occur in people of all ages.

Atypical pneumonia is a mild form of the infection. Many with this type of pneumonia can continue normal activities while sick. It is also commonly known as walking pneumonia.

All types of pneumonia are potentially serious conditions. It will require care from your doctor.

The Lungs (Cut-away View)
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Atypical pneumonia may be caused by bacteria, viruses, or fungi. They tend to be different than the bacteria that cause more traditional forms of pneumonia.