Tuberculosis (TB) bacteria appear in red inside a lung granuloma from a mouse infected with Mycbacterium tuberculosis, the bacterium that causes TB. (IMAGE)

Tufts University, Health Sciences Campus

Tuberculosis (TB) bacteria appear in red inside a lung granuloma from a mouse infected with Mycbacterium tuberculosis, the bacterium that causes TB.

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Tuberculosis (TB) bacteria appear in red inside a lung granuloma from a mouse infected with Mycbacterium tuberculosis, the bacterium that causes TB. A new genetic study of the bacterium in mice sheds light on why TB disease still kills 1.25 million people a year, despite an existing vaccine that invokes a strong immune response.

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Amanda Martinot

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