There's a new tree disease and it's spreading across the country from the Midwest to the northeast.

When you stand underneath a tree with the reflection of the light going through the leaf, you can see these kind of little rectangular patches.

It's Friday, October 27th, and today is Science Friday.

I'm sci-fi producer Shoshana Bucksbound.

Beach trees are facing a new threat to their survival, beach leaf disease.

It was originally found in the Midwest a decade ago, but now it's traveled to the

northeast. It's caused by a microscopic nematode. Scientists are still trying to figure out the

basic questions about the disease and how to treat it. But first, we check in on some of the

week's top science news with guest host, Floralickman. RSV. It's a common virus, but can be dangerous, especially for infants. So many parents

breathed a sigh of relief back in July when an RSV shot for infants was approved. But here we

are with RSV season upon us, and many babies still haven't gotten it. In part because the shot is hard to

find. Demand has outpaced supply. And this week, the CDC issued an alert about the drugs

limited availability. Here to tell us about this and other science news from the week is my guest,

Catherine Wu, staff writer for The Atlantic, based in Boston, Massachusetts.

Welcome back to Science Friday.

Always good to be here.

Okay, so tell me about this RSV shot for infants.

And I guess, first of all, I've heard some hedging around the language for what this shot is.

Is it technically a vaccine?

Great question.

Love this question.

It is technically not a vaccine, not in the traditional

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