What next after shortened TB treatment fails in key trial?

The current treatment for drug-susceptible tuberculosis (TB) used in South Africa last for six months, effectively cures TB and is dirt cheap. Two studies in recent years have shown that TB can be cured in four or in some cases even two months, but price and other complications make these treatments tricky to implement. At a conference in Seattle last week, a major trial of an alternative four-month treatment reported disappointing findings. Elri Voigt unpacks the latest findings and asks what the prospects now are for shortening TB treatment.

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