The GeneXpert MTB/RIF assay is a rapid, automated diagnostic test used to detect tuberculosis ($\text{TB}$) and simultaneously determine if the strain is resistant to rifampicin ($\text{RIF}$), which is one of the most critical first-line anti-TB drugs.
This technology has revolutionized $\text{TB}$ diagnosis, particularly in resource-limited settings, by providing quick, accurate, and essential information for starting effective treatment.
The GeneXpert system is a form of Nucleic Acid Amplification Test ($\text{NAAT}$) that uses real-time Polymerase Chain Reaction (RT-PCR) technology
