Killing Bacteria using Bacteriophage / Phages Viruses

I recently heard about something called Bacteriophages (also known as Phages) - They are basically viruses that seek out and kill bacteria,
They are extremely interesting - but most people have never heard of them - it seems they are used much more in the former USSR countries.
They could be used to kill bacteria that don't respond to antibiotics

en.wikipedia.org/wiki/Bacteriophage

Scientists and physicians at University of California San Diego School of Medicine, working with colleagues at the U.S. Navy Medical Research Center (NMRC), Texas A&M University, a San Diego-based biotech and elsewhere, have successfully used an experimental therapy involving bacteriophages — viruses that target and consume specific strains of bacteria — to treat a patient near death from a multidrug-resistant bacterium.

Tom Patterson was dying from a superbug infection and all antibiotics had failed. Find out how his wife, Dr. Steffanie Strathdee, saved his life from the terrible antibiotic-resistant infection by utilizing
bacteriophages, viruses found in sewage. This gut wrenching story is one of undying love and perseverance, and a forgotten, seemingly miraculous cure hat may help overturn the global antimicrobial resistance crisis.