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Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing. A variety of organisms, including bacteria, viruses and fungi, can cause pneumonia.
Treatment for pneumonia involves curing the infection and preventing complications. People who have community-acquired pneumonia usually can be treated at home with medication. Although most symptoms ease in a few days or weeks, the feeling of tiredness can persist for a month or more.
"Walking pneumonia" is an informal term for a common bacterial condition. It produces milder symptoms that appear more gradually than in other types of more serious pneumonia. Symptoms may include: Cough. Fever. Sore throat. Headache. Runny nose. Ear pain. Chest pain from coughing.
Pneumonitis (noo-moe-NIE-tis) is a general term that refers to swelling and irritation, also called inflammation, of lung tissue. Lung infections such as pneumonia also can cause lung tissue to become inflamed. But pneumonitis generally refers to inflamed lung tissue not caused by an infection.
Seek medical attention if you have difficulty breathing, chest pain, persistent fever of 102 F 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 healthcare professional:
Pneumococcal infection can cause serious problems, such as pneumonia, which affects the lungs; meningitis, which affects the brain; bacteremia, which is a severe infection in the blood; and possibly death.
Pneumonia is an infection that inflames the air sacs in one or both lungs, and can range in seriousness from mild to life-threatening. Pneumonia can affect anyone, but the age groups at highest risk are children younger than age 2 and people older than age 65.
Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills and difficulty breathing. A variety of organisms, including bacteria, viruses and fungi, can cause pneumonia.
Pleurisy (PLOOR-ih-see) is a condition in which the pleura — two large, thin layers of tissue that separate your lungs from your chest wall — becomes inflamed. Also called pleuritis, pleurisy causes sharp chest pain (pleuritic pain) that worsens during breathing.
Abdominal pain can have many causes. The most common causes usually aren't serious, such as gas pains, indigestion or a pulled muscle. Other conditions may need urgent medical attention. The location and pattern of abdominal pain can provide important clues, but how long it lasts is especially useful when figuring out its cause.