Viral pneumonia usually comes with a combination of low fever and chills, muscle aches, fatigue, enlarged lymph nodes in the neck, chest pain, sore throat, and coughing. The cough generally brings up only a small amount of mucus.
Bacterial pneumonia usually comes with a combination of high fever, cough with thick greenish or rust-colored mucus, shortness of breath, rapid breathing, sharp chest pain that is worse with deep breaths, abdominal pain, and severe fatigue. There can be profuse sweating and mental confusion.
In children, labored and rapid breathing (more than 45 breaths a minute); sudden onset of fever; cough; wheezing; and bluish skin, lips, or fingertips are general signs of pneumonia.
Mycoplasma pneumonia is often very benign and resolves without any treatment. Symptoms can consist of violent attacks of coughing that bring up only a small amount of mucus. There are chills and fever; some people get nausea or vomiting. Some patients become very weak for up to a month.
Call Your Doctor If:
Your symptoms indicate you have any form of pneumonia. In many instances, you need immediate treatment to recover and avoid complications.
Your sharp chest pain does not get better with prescribed treatment; you have increased shortness of breath; or your fingernails, toenails, or skin becomes dark or develop a bluish tinge after diagnosis. Your lungs are not getting enough oxygen and you need medical assistance.
You cough up blood; you may need additional treatment for a worsening infection.
Medically reviewed by Paul Enright, MD , July 2005.
SOURCES: American Lung Association. National Library of Medicine. Nemours Foundation. Centers for Disease Control.