title: Difference in susceptibility of mice raised under barrier-sustained (SPF) or conventional conditions to infectious megaenteron.
mesh_terms: D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D003093:Colitis, Ulcerative / Q000382:microbiology*; D004926:Escherichia coli / Q000302:isolation & purification / Q000472:pathogenicity; D004927:Escherichia coli Infections / Q000276:immunology / Q000382:microbiology / Q000401:mortality; D005243:Feces / Q000382:microbiology; D005260:Female; D005856:Germ-Free Life; D006168:Guinea Pigs; D008297:Male; D008532:Megacolon, Toxic / Q000276:immunology / Q000382:microbiology* / Q000401:mortality; D013045:Species Specificity; D013047:Specific Pathogen-Free Organisms; D015003:Yeasts / Q000302:isolation & purification