title: Spirochetal organisms from pigs. 3. Preliminary observations on bacteriophage particles associated with spirochetes of the genus. Treponema.
mesh_terms: D000818:Animals; D001435:Bacteriophages / Q000302:isolation & purification*; D004403:Dysentery / Q000382:microbiology; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D013142:Spirochaeta / Q000302:isolation & purification*; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology; D014208:Treponema / Q000302:isolation & purification*