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Pneumonia is a lung infection that can cause symptoms such as fever, chills, and a cough that produces green or yellow phlegm. This condition is often caused by bacteria (such as Streptococcus pneumoniae) or viruses. Most people can be treated at home with rest, fluids, and possibly antibiotics, but people with more severe symptoms may need treatment in the hospital.
What Is Pneumonia?Pneumonia is an infection within one or both lungs. It can be caused by a number of germs, including bacteria, viruses, or, in rare cases, fungi or parasites.
Pneumonia TypesHealthcare providers separate pneumonia into different types based on where the infection occurred or on the germ that caused it.
- Community-acquired pneumonia
- Hospital-acquired pneumonia
- Healthcare-associated pneumonia.