Use of bacteriophage typing to distinguish Propionibacterium acne types I and II.
Strains of serotypes I and II of Propionibacterium were compared for phage sensitivity. The two serotypes could be distinguished by using a typing set consisting of 16 bacteriophages at concentrations that demonstrated selective lysis of serotype I or II bacterial strains. Seven phage types were found; three were composed exclusively of serotype I, and four were exclusively composed of serotype II organisms. Generally, serotype I strains were more sensitive to phage lysis than were serotype II strains. No correlation was found between phage type and site of isolation.
D001424:Bacterial Infections / Q000382:microbiology; D001434:Bacteriophage Typing; D001435:Bacteriophages / Q000302:isolation & purification / Q000648:ultrastructure; D006801:Humans; D008242:Lysogeny; D011425:Propionibacterium acnes / Q000145:classification* / Q000302:isolation & purification