Teresa Carr

Federal regulations have been imposed on PFAS. How will a Trump or Harris presidency handle these "forever chemicals"?

Health authorities have said that stockpiled Tamiflu should work well against H5N1. Some experts question that bet.

Avian flu is reported to kill more than half the people it infects. The reality is much more complicated.

As polling methods evolve, it can be hard to distinguish solid findings from those that dissolve under scrutiny.

No single, unified list exists of all species cataloged by humans. Some scientists want that to change.

Something is awry about the way we mark time. Can research and policy changes help us reset the clocks?

Gynecological procedures, such as IUD insertion, are excruciating for some women. Why is pain control so rare?

Through telehealth, it’s easier than ever to get prescription drugs online. Should regulators be paying more attention?

The question is a matter of fierce debate among scientists. Now it’s making its way into the courtroom.

Recent reforms could require companies to perform follow-up studies on drugs that received accelerated approval.