Learn · TED

Talk5 min

How do you know if you have a virus?

Cella Wright · TED

Watch At TED

About

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].

The talk

  1. How do you know if you have a virus? 5 min · TED's player

Credits and licence

Institution
TED
Department
TED-Ed
Speaker
Cella Wright
Year
2020
Level
For everyone
Language
English
Subjects
Biology, Medicine and health, Teaching and learning
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed