Pneumonia causes more than 1 million hospitalizations and 50,000 deaths per year in the U.S., according to the American Lung Association.
Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus, causing cough with phlegm or pus, fever, chills, and difficulty breathing.
Pneumonia can range in seriousness from mild to life-threatening. It is most serious for infants and young children, people over 65, and people with health problems or weakened immune systems. For some older adults and people with heart failure or chronic lung problems, pneumonia can quickly become a life-threatening condition.
Symptoms
The signs and symptoms of pneumonia vary from mild to severe, depending on factors such as the type of germ causing the infection, your age and your overall health. Mild signs and symptoms often are similar to those of a cold or flu, but they last longer.
Signs and symptoms of pneumonia may include:
- Chest pain when you breathe or cough.
- Confusion or changes in mental awareness in adults 65 and older.
- Cough, which may produce phlegm.
- Fatigue.
- Fever, sweating and shaking chills.
- Lower than normal body temperature in adults older than 65 and people with weak immune systems.
- Nausea, vomiting or diarrhea.
- Shortness of breath.
Newborns and infants may not show any sign of the infection. Or they may vomit, have a fever and cough, appear restless or tired and without energy, or have difficulty breathing and eating.
Seek medical attention if you have difficulty breathing, chest pain, persistent fever of 102 degrees or higher, or persistent cough, especially if you’re coughing up pus.
It’s especially important that people in these high-risk groups see a health care professional:
- Adults older than 65.
- Children younger than 2 with signs and symptoms.
- People with an underlying health condition or weakened immune system.
- People receiving chemotherapy or taking medication that suppresses the immune system.
Prevention
To help prevent pneumonia: