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The original was posted on /r/science by /u/mvea on 2026-08-06 23:55:55+00:00.

Original Title: In lab tests, AI-designed viruses killed E coli bugs that were resistant to natural bacteriophages. These are the first viruses made by scientists designed by AI. The authors also wrote in the paper: “Such genomes might encode new pathogens that … cannot be contained by existing countermeasures.”