1980 年 55 巻 4 号 p. 215-218
The mode of excretion of Mycobacterium intracellulare at the onset of lung infection has been shown. The organism appeared in sputum about two weeks before the appearance of clinical symptoms (fever, cough and sputum). The amount of organisms isolated increased with manifestation of clinical symptoms and, during the period of the manifestation, the organism appeared every day in sputum. Therefore, daily examination of the sputum specimens at the time of manifestation of clinical symptoms serves greatly for the diagnosis of infection.