title: Spread of an R plasmid among antigen types of Escherichia coli pathogenic for piglets.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial; D002701:Chloramphenicol / Q000494:pharmacology; D004751:Enteritis / Q000382:microbiology; D000939:Epitopes; D004926:Escherichia coli / Q000235:genetics* / Q000276:immunology; D011815:R Factors; D013307:Streptomycin / Q000494:pharmacology; D013449:Sulfonamides / Q000494:pharmacology; D013552:Swine / Q000382:microbiology
chemical_list: D000942:Antigens, Bacterial; D000939:Epitopes; D013449:Sulfonamides; D002701:Chloramphenicol; D013307:Streptomycin