# Bacteria Have a Built-In Suicide Switch That Spreads Resistance. It May Also Be Why Phage Therapy Struggles.

- slug: bacteria-have-a-built-in-suicide-switch-that-spreads-resistance-it-may-also-be-why-phage-therapy
- date: 2026-04-17
- category: Biotech & Life Sciences

Bacteria have a built-in suicide switch that spreads resistance genes. Researchers found the genetic controls in Nature Microbiology and say targeting it could block the broadcast. The catch: shown only in a lab strain so far, not yet in hospital pathogens.

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