Why doesn’t the U.S. have at-home flu tests?

Flu season is underway. RSV is putting record numbers of children in hospitals. And health professionals are gearing up for another Covid winter.

With so many potential viruses in play, it would be helpful if Americans had a way to distinguish between different ailments at home. And when it comes to the flu in particular, at-home testing could help telehealth doctors decide when it makes sense to prescribe treatments like Tamiflu, which need to be started within two days of onset of symptoms.

“Home flu testing would ensure that those who do need and receive antiviral...