bacteriophages

This article is about “AI designed viruses”, but what seems more important to me is progress on the idea of genetically engineered bacteriophages, or viruses that can infect and potentially kill bacteria. Antibiotics seem to have entered a state of diminishing returns (i.e., technological progress is falling short of evolution in some really scary bacteria). Bacteriophages seem promising as the next phase, where you can inject someone with a virus that will infect the specific bacterium causing a problem while not damaging any other healthy cells or beneficial bacteria.