WHO standards could help ease threat from inferior TB drugs

The increasing public health threat posed by substandard tuberculosis treatments purchased from pharmacies in poor countries could be mitigated if World Health Organization standards are enforced by governments, according to a study published online by PLoS Medicine. An insufficient dose of the drug's active ingredient actually promotes the growth of drug-resistant strains. Researcher Dr. Amir Attaran said the WHO regimen is not followed by all countries and its treatments are not prescribed by all doctors.

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