July 26, 2013 -- A new test, Xpert MTB/RIF, was shown to detect nearly two-thirds of tuberculosis cases identified by current culture tests within a 24-hour period, giving developing countries a tool to give people the help they need faster.
The Xpert test was found to be five times more accurate than examining specimens under a microscope, the first-half of the typical detection process, followed by the culture test. The new test, although less effective than the culture test, is ready in 24 hours, compared to the culture test, which usually takes more than two weeks. The Xpert test was also found to have a 99 percent accuracy rate for tests with negative results.
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