Hi, this is Your Health, Quickly, a Scientific American podcast series.

We bring you the latest vital health news: discoveries that affect your body and your mind.

And we break down the medical research to help you stay healthy. I'm Tanya Lewis.

I'm Josh Fischman.

We're Scientific American's senior health editors.

Today we're going to look at how measles — a disease that was practically eliminated in the U. S. — has resurged in recent months, because people basically forgot how bad it was and got complacent about vaccines.

Just a week ago, the U. S. reported its 113th case of measles for 2024.

That's more cases than we had in all of 2023, when we had 58 during the whole year.

And we've still got three-quarters of this year to go.

And an increase in measles means an increase in danger.