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. 2003 Feb;41(2):680–688. doi: 10.1128/JCM.41.2.680-688.2003

TABLE 2.

Sensitivity of the liquid culture end-point detection method with MTTa

Result for sputum Presence of M. tuberculosis Approx. no. of M. tuberculosis isolates Result a Result b
+ 3,000 Yellow Yellow
+ 0 Blue Blue
+ + 3 Blue Blue
+ + 30 Blue Blue
+ + 60 Yellow Yellow
+ + 300 Yellow Yellow
+ + 3,000 Yellow Yellow
a

See Materials and Methods. Results a and b refer to experimental duplicates.