Artificial intelligence (AI) software can detect tuberculosis (TB) from chest x-rays at an accuracy level comparable to, or better than, that of the radiologists tested, new research indicates.

Access is dwindling for many older, off-patent, essential drugs as companies use an emerging strategy to acquire therapies in niche markets where there are few or no alternatives, and then jack up the price.

Researchers have found shared risk factors among patients at the root of 26 tuberculosis (TB) outbreaks in the United States from 2002 to 2011.