Cella Wright's guest appearances

Cella Wright

TED-Ed: Lessons Worth Sharing

Christopher Columbus

Jessica Green

Allison Ramsey

Mary Staicu

Alex Gendler

Dan Reinstein

Alex Rosenthal

Anees Bahji

William Golding

Jill Dash

Theresa A. Yugar

Chris A. Kniesly

Conor Heffernan

Kurt Vonnegut

Brendan Constantine

OwlTail

A new virus emerges and spreads like wildfire. In order to contain it, researchers must first collect data about who's been infected. Two main viral testing techniques are critical: one tells you if you have the virus and the other shows if you've already had it. So, how exactly do these tests work? Cella Wright explores the science of PCR tests and immunoassays. [Directed by Hype CG, narrated by Bethany Cutmore-Scott, music by Gabriel Maia].

How do you know if you have a virus? | Cella Wright