Background: Antibiotic resistant bacteria and various infections caused by them especially extensive drug resistance (XDR) strains and worrying statistics of mortality due to these strains and also the lack of a clear vision for development and production of new effective antibiotics have made the necessity of using alternative therapies more apparent.
Materials And Methods: In this study, specific phages affecting the XDR strain were extracted from hospital wastewater and their laboratory characteristics along with lysis effect on 40 XDR strains of were investigated.
Results: The results indicated that three isolated phages (PaB1, PaBa2 and PaBa3) belonged to the and families and were specific to strains.