The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

UMass Amherst biochemists are mapping the molecular structure of a needle-like tool used by bacteria to invade human and mammalian cells to cause such diseases as plague and dysentery. Of particular ...

Swallow the wrong microbe, and you might end up in the hospital with a needle or two in your arm — and plenty of itty-bitty bacterial needles poking at you from the inside. That’s because many ...