Phage Therapy is the therapeutic use of lytic bacteriophages to treat pathogenic bacterial infections that are immune to antibiotic drugs. Phages were discovered by Frederick Twort in England in 1915 and Félix d’Hérelle in France in 1917.

Bacteria also develop resistance to phages, but it is much easier and quicker to develop a new phage versus a new antibiotic. A few weeks versus years are all that is needed to obtain a new phage for a new strain of resistant bacteria. As bacteria evolve resistance, the relevant phages naturally evolve alongside it. When super bacterium appears, the super phage attacks it. It just needs to be derived from the same environment.

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