If they don't have the facilities to identify the strain, then how do they know they are actually dealing with TB and not something with similar symptoms? Could this be a case of misdiagnosis?
Diagnosing TB is separate from identifying the specific strain of TB - the former can be done definitively with a microscope and Petri dish (and mostly definitively with symptoms + x-rays + skin test), the later requires much more modern lab techniques such as PCR and molecular assays (although you can diagnose with the modern techniques, and it's certainly faster to do so, they aren't needed).
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