Clinical features:
(1) The first symptoms are those of a mild respiratory tract infection with symptoms that may include coryza, nasal obstruction, headache, weakness, dizziness, anorexia and sweating.
(2) The patient then develops dyspnea, chest pain and a chronic, nonproductive cough.
(3) The patient’s temperature may range from less than 37.5°C to greater than 39.5°C.
(4) Routine cultures (sputum, blood, other) are negative for bacteria.
(5) Imaging studies show a pulmonary infiltrate.
Additonal features:
(1) The condition may be chronic and relapsing.
(2) The majority of patients recover.
(3) In the past some patients were referred as having a “walking pneumonia”.
