Atypical pneumonia is a form of pneumonia caused by agents other than the typical bacterial pathogens that cause the more common "typical" pneumonia. It can be caused by a number of different viruses, bacteria, or even fungi. The most common cause of atypical pneumonia is the Mycoplasma pneumoniae virus, although other agents, such as Chlamydia pneumoniae and Legionella pneumophila, can also cause the infection.
Atypical pneumonia is often difficult to diagnose, as the signs and symptoms are often less severe than those associated with typical bacterial pneumonia. Symptoms of atypical pneumonia may include a low-grade fever, chills, a dry cough, fatigue, sore throat, headache, and muscle aches. Chest pain, shortness of breath, and rapid breathing may also occur in some cases.
Diagnosis of atypical pneumonia is usually made through laboratory tests, such as blood tests and chest X-rays. Treatment typically involves antibiotics, although some cases of atypical pneumonia may resolve on their own. In severe cases, hospitalization may be necessary.
Although atypical pneumonia is often less severe than typical bacterial pneumonia, it can still be dangerous and should be treated promptly and appropriately. If you experience any of the signs or symptoms of atypical pneumonia, it is important to see a doctor right away.