What is Multidrug-resistant tuberculosis ?

Answer 1

A bacterial infection affecting primarily the lungs, more common in urban areas, treatable with antibiotics (though resistant strains are appearing). A simple test, often given at the one-year checkup, can determine whether an infant has TB.
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Answer 2

Multidrug-resistant tuberculosis (MDR TB) is caused by strains of the tuberculosis bacteria resistant to the two most effective anti-tuberculosis drugs available - isoniazid and rifampicin. MDR TB can only be diagnosed in a specialized laboratory.