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

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9,996 Questions Answered

TEDEd Animation

Let’s Begin…

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.

About TED-Ed Animations

TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Cella Wright
  • Director Luísa Holanda
  • Narrator Bethany Cutmore-Scott
  • Storyboard Artist Luísa Holanda
  • Art Director Luísa Holanda

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