Most Americans learned what an N95 mask was during the COVID-19 pandemic. But what many still don’t know is that every one of them was certified by a single, government-run lab in Bruceton, Allegheny ...

The lab has halted almost all of its regular work and is preparing to shut down in June. That’s because of the most recent ...

The agency could continue to pursue more extensive LDT oversight by tightening control over items like RUO reagents and specimen collection devices.

GOP-led states are barreling ahead in a push to require voters to show documents proving of their citizenship when ...