Sam Baron receives funding from the Australian Research Council. What’s a medical drug? Ask someone on the street and they’re likely to tell you it’s the kind of thing you take when you’re unwell.

The name for a family of commercial chemicals usually provides a fairly clear idea of the related compounds within it. An example is organophosphate pesticides. Another is brominated flame retardants.

A sweeping new definition of long COVID could help affected people get recognition of their condition and improve diagnosis and treatment. The U.S. National Academies of Sciences, Engineering and ...