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