Industrialization, World War I, Soviet Collapse Helped Spread of Drug-resistant Tuberculosis

Some of the drug-resistant tuberculosis (TB) bacteria have spread from East Asia in waves propelled by industrialization, World War I and Soviet collapse, according to a study published in the journal Nature Genetics. Researchers studied nearly 5,000 TB samples from 99 countries and pinpointed changes in the DNA code to draw a partial family tree of the germ Mycobacterium tuberculosis. Researchers claim that a branch of that tree known as the 'Beijing lineage' begins ...

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