Season 2, Episode 19 Going Viral

First Aired: April 3, 2012

Conclusion. As the deadly virus rampages through the city and the body count continues to rise, the team, headed by a CDC officer, seek to discover who is behind the act of terrorism.

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Guest Cast

Luke Perry Dr. Charlie Stafford
Nick Stahl Marcel Trevino
Dean Norris Special Agent Brendan Johnson