what is phage
Bacteriophages or phage are viruses that invade bacterial cells and, in the case of lytic phages, disrupt bacterial metabolism and cause the bacterium to lyse [destruct].Phage Therapy is the therapeutic use of lytic bacteriophages to treat pathogenic bacterial infections.Bacterial Host Specificity.electing new phages (e.g., against phage-resistant bacteria) is a relatively rapid process that can frequently be accomplished in days or weeks. Developing a new antibiotic (e.g., against antibiotic-resistant bacteria) is a time-consuming process and may take several years (16, 51).