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Health

AI-Designed Virus Administered to Human Patient

San Francisco lab administers AI-generated bacteriophage to treat antibiotic-resistant infection.

New York Editorial News Desk October 30, 2026 1 min read

The Brief

  • Radical Numerics claims AI-designed phages were given to a patient with a drug-resistant infection.
  • The treatment was administered under FDA's compassionate-use pathway.
  • Results remain unpublished and unreviewed.

San Francisco-based Radical Numerics announced in October 2026 that its AI-designed bacteriophages were administered to a human patient with an antibiotic-resistant bacterial infection.

The phages were engineered by modifying the gene for T7's tail fiber, a protein that allows the virus to attach to bacteria.

The company has not disclosed the patient's condition, outcome, or clinical details, citing privacy concerns and the potential for identification.

The treatment was tested against bacteria from the patient's infection and showed effectiveness in laboratory conditions before being administered.

Radical Numerics self-published its technical findings online but has not submitted the work for peer review or shared clinical results.

The company plans to commercialize the treatment but has not yet released any information on the patient's recovery or long-term effects.

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