While pneumonia, an infection in the lungs, itself isn’t contagious, the viruses and bacteria that cause it often are. People with weakened immune systems may be at a greater risk from contagious ...

Pneumonia is a severe condition that occurs as the result of a lung infection. Pneumonia that occurs during pregnancy is called maternal pneumonia. In many people, pneumonia begins with a common cold ...

Pneumonia typically occurs when a person acquires a viral, bacterial, or fungal lung infection. A cough is a common symptom of pneumonia. However, a person can have the condition without a cough.

Although fever is a common symptom of pneumonia, in some cases you can have pneumonia without a fever. Read on to learn more about this topic, the different types and causes of pneumonia, and symptoms ...

Pneumonia is a lung infection that can range from mild to so serious that you have to go to the hospital. It happens when an infection causes air sacs in your lungs (the alveoli) and tubes in your ...