Abstract
The co-operative study group of laboratory technicians of National Sanatoriums in Tohoku District made a comparative study with the use of both Ogawa and Yamane media for the clinical detection of tubercle bacilli from sputum specimens of total 3, 832 which contain those of individual 1, 265 admited cases and 37 out-patients. Following results were obtained:
1. The bacilli grew more rapidly in Yamane medium than in Ogawa medium.
2. The detection rate of the bacilli in both media were significantly similar.
3. The contamination rate in Yamane medium was less than that in Ogawa medium. 4. Yamane medium positive and Ogawa medium negative cases and the reverse cases were observed in almost same number.
5. From the above results the combination use of both media was proved to be better.
