New TB Test Reveals Patients At Risk, Says Study

A recently introduced blood test can reveal which patients may develop active tuberculosis much more precisely than the 100-year old TB skin test, according to a new study published today in the journal Annals of Internal Medicine. Around a third of the world's population is infected with the TB bacteria and approximately 9 million new cases of active TB are diagnosed around the world each year, according to World Health Organization estimates. The majority of those infected live in the developing world.

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