TWiM explains how a mutualistic model bacterium can become lethal in a non-symbiotic host, and engineering a kill switch into a tuberculosis vaccine for improved safety.

Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson.

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Music used on TWiM is composed and performed by Ronald Jenkees and used with permission.

• When a mutualist becomes lethal (mBio)
• A lasting symbiosis (Nat Rev Micro)
• A kill switch for BCG (Nat Micro)
• Engineering mycobacteria for vaccination (Nat Micro)
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