Tuberculosis is the world’s deadliest infectious disease. In 2017, the World Health Organization reported that about 10 million people globally developed active tuberculosis, which is caused by the bacterium Mycobacterium tuberculosis, and that 1.6 million died from the disease.
While the illness can be cured, not everyone gets treatment – the WHO has identified “large and persistent gaps in detection and treatment” – and those who do sometimes quit taking the big handful of pills prematurely. Another factor is the rise of drug-resistant strains that are more difficult to treat.
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