All cellular life, including you, is in an ancient and unending war with viruses. Watch how viruses attack cells and learn about RNA interference, one of the ways that cells fight back.

Play the RNA Lab: http://www.pbs.org/wgbh/nova/labs/lab/rna/

Find discussion questions for this video and other resources in the RNA Lab collection on PBS LearningMedia: http://www.pbslearningmedia.org/resource/nvra.sci.virus/virus-wars/

CREDITS

Writer/Director/Producer Alex Rosenthal

2-D Animator Qa'ed Mai

3-D Animator Janet Iwasa

Narrator George Zaidan

Music Scorekeepers Music Library

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