Tanya Lewis: Hi,and welcome to COVID,Quickly,a biweekly Scientific American podcast series.

Josh Fischman: This is your fast-track update on the COVID pandemic.

We bring you up to speed on the science behind the most urgent questions about the virus and the disease.

We demystify the research and help you understand what it really means.

Lewis: I'm Tanya Lewis Fischman: This I'm Josh Fischman Lewis:And we're Scientific American's senior health editors.

Today we're talking about when we'll know if vaccines are safe for kids ...

Fischman:Why Biden's claim that "everyone is eligible" for vaccines isn't good enough ...

Lewis: And how a tiny country proved rapid testing can stop COVID spread.

Fischman: States all over the country just announced people 16 and up can sign up for vaccines.

But what a lot of folks want to know is if kids under 16 can get a shot.