Abstract
A comparison is presented of modified Proskaure & Beck's medium with Oka & Katakura's medium for the detection of Tubercle Bacilli in the patients sputa.
We found 109 positive specimens on Oka & Katakura's medium, 111 positive on modified Proskauer & Beck's medium in 161 patients sputa, and a close agrelment of growth rate was found between the two media on the same positive specimen. The colonies of Tubercle Bacilli is found earlier on modified Prokauer & Beck's medium than on Oka & Katakura's medium.
It is supported that the liquid medium is superior to the solid medium for the purpose of early detection of Tubercle Bacilli, although the liguid medium is more frequently contaminated than the solid medium; two contamination were found on Oka & Katakura's medium and six on modified Proskauer & Beck's medium in 161 specimens.
The liquid medium is practical for diagnostic purpose of relatively uncontaminated materials, such as sputum, and we can obtain a good result in early detection of colonies.
